Error trying to unzip file: “need PK compat. v6.1 (can do v4.6)”












16















I received a zip file from a bank. I get the following error when I trying to unzip it.



unzip filename.zip 
Archive: filename.zip
skipping: SOME_STUFF.pdf need PK compat. v6.1 (can do v4.6)


The file command returns



Zip archive data


for this file.



There are a fair number of threads containing this error message, but the only concrete suggestions they have is to use 7z x or 7za x from the p7zip-full package. These fail with the error:



Unsupported Method

Sub items Errors: 1


I'm using Debian wheezy amd64. I don't see significant updates of the unzip or 7za packages in testing/unstable though.



I'd appreciate suggestions of how to unzip this file, and more generally, what does the error message PK compat. v6.1 (can do v4.6) mean? For a widely used utility, zip does not have much documentation available about it. The README in the Debian sources points to http://www.info-zip.org/pub/infozip/ which lists a release dated of 29th April 2009 for UnZip 6.0.



Here is the version output for the unzip binary on my system.



unzip -v
UnZip 6.00 of 20 April 2009, by Debian. Original by Info-ZIP.

Latest sources and executables are at ftp://ftp.info-zip.org/pub/infozip/ ;
see ftp://ftp.info-zip.org/pub/infozip/UnZip.html for other sites.

Compiled with gcc 4.7.2 for Unix (Linux ELF) on Feb 3 2015.

UnZip special compilation options:
ACORN_FTYPE_NFS
COPYRIGHT_CLEAN (PKZIP 0.9x unreducing method not supported)
SET_DIR_ATTRIB
SYMLINKS (symbolic links supported, if RTL and file system permit)
TIMESTAMP
UNIXBACKUP
USE_EF_UT_TIME
USE_UNSHRINK (PKZIP/Zip 1.x unshrinking method supported)
USE_DEFLATE64 (PKZIP 4.x Deflate64(tm) supported)
UNICODE_SUPPORT [wide-chars, char coding: UTF-8] (handle UTF-8 paths)
LARGE_FILE_SUPPORT (large files over 2 GiB supported)
ZIP64_SUPPORT (archives using Zip64 for large files supported)
USE_BZIP2 (PKZIP 4.6+, using bzip2 lib version 1.0.6, 6-Sept-2010)
VMS_TEXT_CONV
WILD_STOP_AT_DIR
[decryption, version 2.11 of 05 Jan 2007]

UnZip and ZipInfo environment options:
UNZIP: [none]
UNZIPOPT: [none]
ZIPINFO: [none]
ZIPINFOOPT: [none]


dpkg reports the package version as 6.0-8+deb7u2.



The output of zipinfo is:



zipinfo filename.zip 
Archive: filename.zip
Zip file size: 6880 bytes, number of entries: 1
-rw-a-- 6.4 fat 10132 Bx defN 15-Feb-06 16:24 SOME_STUFF.pdf
1 file, 10132 bytes uncompressed, 6568 bytes compressed: 35.2%









share|improve this question

























  • I came across this bug report that suggest to install p7zip-rar on Debian in case you get the 7z error that you got.

    – Anthon
    Apr 30 '17 at 6:53
















16















I received a zip file from a bank. I get the following error when I trying to unzip it.



unzip filename.zip 
Archive: filename.zip
skipping: SOME_STUFF.pdf need PK compat. v6.1 (can do v4.6)


The file command returns



Zip archive data


for this file.



There are a fair number of threads containing this error message, but the only concrete suggestions they have is to use 7z x or 7za x from the p7zip-full package. These fail with the error:



Unsupported Method

Sub items Errors: 1


I'm using Debian wheezy amd64. I don't see significant updates of the unzip or 7za packages in testing/unstable though.



I'd appreciate suggestions of how to unzip this file, and more generally, what does the error message PK compat. v6.1 (can do v4.6) mean? For a widely used utility, zip does not have much documentation available about it. The README in the Debian sources points to http://www.info-zip.org/pub/infozip/ which lists a release dated of 29th April 2009 for UnZip 6.0.



Here is the version output for the unzip binary on my system.



unzip -v
UnZip 6.00 of 20 April 2009, by Debian. Original by Info-ZIP.

Latest sources and executables are at ftp://ftp.info-zip.org/pub/infozip/ ;
see ftp://ftp.info-zip.org/pub/infozip/UnZip.html for other sites.

Compiled with gcc 4.7.2 for Unix (Linux ELF) on Feb 3 2015.

UnZip special compilation options:
ACORN_FTYPE_NFS
COPYRIGHT_CLEAN (PKZIP 0.9x unreducing method not supported)
SET_DIR_ATTRIB
SYMLINKS (symbolic links supported, if RTL and file system permit)
TIMESTAMP
UNIXBACKUP
USE_EF_UT_TIME
USE_UNSHRINK (PKZIP/Zip 1.x unshrinking method supported)
USE_DEFLATE64 (PKZIP 4.x Deflate64(tm) supported)
UNICODE_SUPPORT [wide-chars, char coding: UTF-8] (handle UTF-8 paths)
LARGE_FILE_SUPPORT (large files over 2 GiB supported)
ZIP64_SUPPORT (archives using Zip64 for large files supported)
USE_BZIP2 (PKZIP 4.6+, using bzip2 lib version 1.0.6, 6-Sept-2010)
VMS_TEXT_CONV
WILD_STOP_AT_DIR
[decryption, version 2.11 of 05 Jan 2007]

UnZip and ZipInfo environment options:
UNZIP: [none]
UNZIPOPT: [none]
ZIPINFO: [none]
ZIPINFOOPT: [none]


dpkg reports the package version as 6.0-8+deb7u2.



The output of zipinfo is:



zipinfo filename.zip 
Archive: filename.zip
Zip file size: 6880 bytes, number of entries: 1
-rw-a-- 6.4 fat 10132 Bx defN 15-Feb-06 16:24 SOME_STUFF.pdf
1 file, 10132 bytes uncompressed, 6568 bytes compressed: 35.2%









share|improve this question

























  • I came across this bug report that suggest to install p7zip-rar on Debian in case you get the 7z error that you got.

    – Anthon
    Apr 30 '17 at 6:53














16












16








16


5






I received a zip file from a bank. I get the following error when I trying to unzip it.



unzip filename.zip 
Archive: filename.zip
skipping: SOME_STUFF.pdf need PK compat. v6.1 (can do v4.6)


The file command returns



Zip archive data


for this file.



There are a fair number of threads containing this error message, but the only concrete suggestions they have is to use 7z x or 7za x from the p7zip-full package. These fail with the error:



Unsupported Method

Sub items Errors: 1


I'm using Debian wheezy amd64. I don't see significant updates of the unzip or 7za packages in testing/unstable though.



I'd appreciate suggestions of how to unzip this file, and more generally, what does the error message PK compat. v6.1 (can do v4.6) mean? For a widely used utility, zip does not have much documentation available about it. The README in the Debian sources points to http://www.info-zip.org/pub/infozip/ which lists a release dated of 29th April 2009 for UnZip 6.0.



Here is the version output for the unzip binary on my system.



unzip -v
UnZip 6.00 of 20 April 2009, by Debian. Original by Info-ZIP.

Latest sources and executables are at ftp://ftp.info-zip.org/pub/infozip/ ;
see ftp://ftp.info-zip.org/pub/infozip/UnZip.html for other sites.

Compiled with gcc 4.7.2 for Unix (Linux ELF) on Feb 3 2015.

UnZip special compilation options:
ACORN_FTYPE_NFS
COPYRIGHT_CLEAN (PKZIP 0.9x unreducing method not supported)
SET_DIR_ATTRIB
SYMLINKS (symbolic links supported, if RTL and file system permit)
TIMESTAMP
UNIXBACKUP
USE_EF_UT_TIME
USE_UNSHRINK (PKZIP/Zip 1.x unshrinking method supported)
USE_DEFLATE64 (PKZIP 4.x Deflate64(tm) supported)
UNICODE_SUPPORT [wide-chars, char coding: UTF-8] (handle UTF-8 paths)
LARGE_FILE_SUPPORT (large files over 2 GiB supported)
ZIP64_SUPPORT (archives using Zip64 for large files supported)
USE_BZIP2 (PKZIP 4.6+, using bzip2 lib version 1.0.6, 6-Sept-2010)
VMS_TEXT_CONV
WILD_STOP_AT_DIR
[decryption, version 2.11 of 05 Jan 2007]

UnZip and ZipInfo environment options:
UNZIP: [none]
UNZIPOPT: [none]
ZIPINFO: [none]
ZIPINFOOPT: [none]


dpkg reports the package version as 6.0-8+deb7u2.



The output of zipinfo is:



zipinfo filename.zip 
Archive: filename.zip
Zip file size: 6880 bytes, number of entries: 1
-rw-a-- 6.4 fat 10132 Bx defN 15-Feb-06 16:24 SOME_STUFF.pdf
1 file, 10132 bytes uncompressed, 6568 bytes compressed: 35.2%









share|improve this question
















I received a zip file from a bank. I get the following error when I trying to unzip it.



unzip filename.zip 
Archive: filename.zip
skipping: SOME_STUFF.pdf need PK compat. v6.1 (can do v4.6)


The file command returns



Zip archive data


for this file.



There are a fair number of threads containing this error message, but the only concrete suggestions they have is to use 7z x or 7za x from the p7zip-full package. These fail with the error:



Unsupported Method

Sub items Errors: 1


I'm using Debian wheezy amd64. I don't see significant updates of the unzip or 7za packages in testing/unstable though.



I'd appreciate suggestions of how to unzip this file, and more generally, what does the error message PK compat. v6.1 (can do v4.6) mean? For a widely used utility, zip does not have much documentation available about it. The README in the Debian sources points to http://www.info-zip.org/pub/infozip/ which lists a release dated of 29th April 2009 for UnZip 6.0.



Here is the version output for the unzip binary on my system.



unzip -v
UnZip 6.00 of 20 April 2009, by Debian. Original by Info-ZIP.

Latest sources and executables are at ftp://ftp.info-zip.org/pub/infozip/ ;
see ftp://ftp.info-zip.org/pub/infozip/UnZip.html for other sites.

Compiled with gcc 4.7.2 for Unix (Linux ELF) on Feb 3 2015.

UnZip special compilation options:
ACORN_FTYPE_NFS
COPYRIGHT_CLEAN (PKZIP 0.9x unreducing method not supported)
SET_DIR_ATTRIB
SYMLINKS (symbolic links supported, if RTL and file system permit)
TIMESTAMP
UNIXBACKUP
USE_EF_UT_TIME
USE_UNSHRINK (PKZIP/Zip 1.x unshrinking method supported)
USE_DEFLATE64 (PKZIP 4.x Deflate64(tm) supported)
UNICODE_SUPPORT [wide-chars, char coding: UTF-8] (handle UTF-8 paths)
LARGE_FILE_SUPPORT (large files over 2 GiB supported)
ZIP64_SUPPORT (archives using Zip64 for large files supported)
USE_BZIP2 (PKZIP 4.6+, using bzip2 lib version 1.0.6, 6-Sept-2010)
VMS_TEXT_CONV
WILD_STOP_AT_DIR
[decryption, version 2.11 of 05 Jan 2007]

UnZip and ZipInfo environment options:
UNZIP: [none]
UNZIPOPT: [none]
ZIPINFO: [none]
ZIPINFOOPT: [none]


dpkg reports the package version as 6.0-8+deb7u2.



The output of zipinfo is:



zipinfo filename.zip 
Archive: filename.zip
Zip file size: 6880 bytes, number of entries: 1
-rw-a-- 6.4 fat 10132 Bx defN 15-Feb-06 16:24 SOME_STUFF.pdf
1 file, 10132 bytes uncompressed, 6568 bytes compressed: 35.2%






zip






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Feb 7 '15 at 7:13







Faheem Mitha

















asked Feb 7 '15 at 6:59









Faheem MithaFaheem Mitha

23k1880135




23k1880135













  • I came across this bug report that suggest to install p7zip-rar on Debian in case you get the 7z error that you got.

    – Anthon
    Apr 30 '17 at 6:53



















  • I came across this bug report that suggest to install p7zip-rar on Debian in case you get the 7z error that you got.

    – Anthon
    Apr 30 '17 at 6:53

















I came across this bug report that suggest to install p7zip-rar on Debian in case you get the 7z error that you got.

– Anthon
Apr 30 '17 at 6:53





I came across this bug report that suggest to install p7zip-rar on Debian in case you get the 7z error that you got.

– Anthon
Apr 30 '17 at 6:53










3 Answers
3






active

oldest

votes


















21














Origin of the error



The PK in the error stands for Phil Katz, the inventor of the original PKZIP format. The zip utility has not kept up with the capabilities of the pkzip derived commercial software, particularly the certificate storage that banks like to include in their ZIP files.



Wikipedia gives an overview of the development of the format. But the Unix zip utilities don't implement the changes after the year 2002.



You might have to buy the PKWARE commercial version for Linux to uncompress this.



The man page for zip has the following to say for itself and unzip:



   A  companion  program  (unzip(1))  unpacks  zip  archives.  The zip and
unzip(1) programs can work with archives produced by PKZIP (supporting
most PKZIP features up to PKZIP version 4.6), and PKZIP and PKUNZIP can
work with archives produced by zip (with some exceptions, notably
streamed archives, but recent changes in the zip file standard may
facilitate better compatibility). zip version 3.0 is compatible with
PKZIP 2.04 and also supports the Zip64 extensions of PKZIP 4.5 which
allow archives as well as files to exceed the previous 2 GB limit (4 GB
in some cases). zip also now supports bzip2 compression if the bzip2
library is included when zip is compiled. Note that PKUNZIP 1.10 can‐
not extract files produced by PKZIP 2.04 or zip 3.0. You must use PKUN‐
ZIP 2.04g or unzip 5.0p1 (or later versions) to extract them.


Solution



Although zip cannot do the job there are other tools that can. You mention the 7zip utility and the Linux/Unix commandline version of 7-Zip that, among others can read and write ZIP format. It claims that if 7-Zip cannot read a zip file, that in 99% of the cases the file is broken. 7-Zip utilities should be able to read your file, so either it is broken or else yours are in the 1% (for which I found no further details).



7-zip on Linux comes in various executables with different format support. The most basic ( 7zr ), doesn't support ZIP, you should use at least 7za or the full-fledged 7z:



7za x filename.zip


Different Linux version package 7za/7z in packages with different names.



The most easy (as so often) is installing on Solus:



sudo eopkg install p7zip


On Debian derived Linux version, the package p7zip only installs the base 7z that doesn't support ZIP. This split-up has caused some problems and installing p7zip-full doesn't do what it says, sometimes you also have to install p7zip-rar On my Linux Mint system I needed to do:



sudo apt-get install p7zip-full p7zip-rar


On RedHat/CentOS you need to have the EPEL repository enabled. E.g on CentOS 7 I needed to do:



sudo yum install epel-release
sudo yum --enablerepo=epel install p7zip





share|improve this answer


























  • Thanks, Anthon, that's very informative. Do you know why the zip utility has not kept up? On a related note, is there any password protected method of transmission that I could tell my bank to use that might have a shot at working on a Linux based system without using proprietary software?

    – Faheem Mitha
    Feb 7 '15 at 7:52











  • @FaheemMitha My guess is that pkware wanted to earn more money and is not disclosing the details of the newer formats nor publishing the code as open source. I don't think your bank is going to change just for you, I had problems for several years with slightly non-conform PDF files that evince could not read and I ended up firing up my WinXP VM to do so.

    – Anthon
    Feb 7 '15 at 8:01











  • I don't expect my bank to do anything just for me. :-) But I thought if there was some alternative method available, they might consider using it. In this case, this zipped file was not sent to me via some automated method. It was sent to me by a person at my request.

    – Faheem Mitha
    Feb 7 '15 at 9:36











  • The ZIP format as specified in the "APPNOTES" file is docuemnted by PKWare openly. @Anthon

    – eckes
    Feb 7 '15 at 15:05



















8














I ran in to the same problem except with PK compat. v6.3. Solved it by extracting the archive with the 7-zip POSIX version.



Arch Linux package: p7zip.






share|improve this answer



















  • 1





    Using 7zip was the best option for me. i.e. 7z x archive.zip

    – Matt H
    Dec 22 '16 at 21:41



















0














I ran into the exact same error code (need PK compat. v6.1) while trying to unzip a zip file with the default MacOS unzipper.



I tried the p7zip and got kind of deep into it before checking the App Store.



In the App Store, I found a free unzipper app called "Unarchiver" (the first search result as of this writing) and it successfully unzipped the file without any problems.



For Mac users, I'd suggest using that free "Unarchiver" program.






share|improve this answer








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    3 Answers
    3






    active

    oldest

    votes








    3 Answers
    3






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    21














    Origin of the error



    The PK in the error stands for Phil Katz, the inventor of the original PKZIP format. The zip utility has not kept up with the capabilities of the pkzip derived commercial software, particularly the certificate storage that banks like to include in their ZIP files.



    Wikipedia gives an overview of the development of the format. But the Unix zip utilities don't implement the changes after the year 2002.



    You might have to buy the PKWARE commercial version for Linux to uncompress this.



    The man page for zip has the following to say for itself and unzip:



       A  companion  program  (unzip(1))  unpacks  zip  archives.  The zip and
    unzip(1) programs can work with archives produced by PKZIP (supporting
    most PKZIP features up to PKZIP version 4.6), and PKZIP and PKUNZIP can
    work with archives produced by zip (with some exceptions, notably
    streamed archives, but recent changes in the zip file standard may
    facilitate better compatibility). zip version 3.0 is compatible with
    PKZIP 2.04 and also supports the Zip64 extensions of PKZIP 4.5 which
    allow archives as well as files to exceed the previous 2 GB limit (4 GB
    in some cases). zip also now supports bzip2 compression if the bzip2
    library is included when zip is compiled. Note that PKUNZIP 1.10 can‐
    not extract files produced by PKZIP 2.04 or zip 3.0. You must use PKUN‐
    ZIP 2.04g or unzip 5.0p1 (or later versions) to extract them.


    Solution



    Although zip cannot do the job there are other tools that can. You mention the 7zip utility and the Linux/Unix commandline version of 7-Zip that, among others can read and write ZIP format. It claims that if 7-Zip cannot read a zip file, that in 99% of the cases the file is broken. 7-Zip utilities should be able to read your file, so either it is broken or else yours are in the 1% (for which I found no further details).



    7-zip on Linux comes in various executables with different format support. The most basic ( 7zr ), doesn't support ZIP, you should use at least 7za or the full-fledged 7z:



    7za x filename.zip


    Different Linux version package 7za/7z in packages with different names.



    The most easy (as so often) is installing on Solus:



    sudo eopkg install p7zip


    On Debian derived Linux version, the package p7zip only installs the base 7z that doesn't support ZIP. This split-up has caused some problems and installing p7zip-full doesn't do what it says, sometimes you also have to install p7zip-rar On my Linux Mint system I needed to do:



    sudo apt-get install p7zip-full p7zip-rar


    On RedHat/CentOS you need to have the EPEL repository enabled. E.g on CentOS 7 I needed to do:



    sudo yum install epel-release
    sudo yum --enablerepo=epel install p7zip





    share|improve this answer


























    • Thanks, Anthon, that's very informative. Do you know why the zip utility has not kept up? On a related note, is there any password protected method of transmission that I could tell my bank to use that might have a shot at working on a Linux based system without using proprietary software?

      – Faheem Mitha
      Feb 7 '15 at 7:52











    • @FaheemMitha My guess is that pkware wanted to earn more money and is not disclosing the details of the newer formats nor publishing the code as open source. I don't think your bank is going to change just for you, I had problems for several years with slightly non-conform PDF files that evince could not read and I ended up firing up my WinXP VM to do so.

      – Anthon
      Feb 7 '15 at 8:01











    • I don't expect my bank to do anything just for me. :-) But I thought if there was some alternative method available, they might consider using it. In this case, this zipped file was not sent to me via some automated method. It was sent to me by a person at my request.

      – Faheem Mitha
      Feb 7 '15 at 9:36











    • The ZIP format as specified in the "APPNOTES" file is docuemnted by PKWare openly. @Anthon

      – eckes
      Feb 7 '15 at 15:05
















    21














    Origin of the error



    The PK in the error stands for Phil Katz, the inventor of the original PKZIP format. The zip utility has not kept up with the capabilities of the pkzip derived commercial software, particularly the certificate storage that banks like to include in their ZIP files.



    Wikipedia gives an overview of the development of the format. But the Unix zip utilities don't implement the changes after the year 2002.



    You might have to buy the PKWARE commercial version for Linux to uncompress this.



    The man page for zip has the following to say for itself and unzip:



       A  companion  program  (unzip(1))  unpacks  zip  archives.  The zip and
    unzip(1) programs can work with archives produced by PKZIP (supporting
    most PKZIP features up to PKZIP version 4.6), and PKZIP and PKUNZIP can
    work with archives produced by zip (with some exceptions, notably
    streamed archives, but recent changes in the zip file standard may
    facilitate better compatibility). zip version 3.0 is compatible with
    PKZIP 2.04 and also supports the Zip64 extensions of PKZIP 4.5 which
    allow archives as well as files to exceed the previous 2 GB limit (4 GB
    in some cases). zip also now supports bzip2 compression if the bzip2
    library is included when zip is compiled. Note that PKUNZIP 1.10 can‐
    not extract files produced by PKZIP 2.04 or zip 3.0. You must use PKUN‐
    ZIP 2.04g or unzip 5.0p1 (or later versions) to extract them.


    Solution



    Although zip cannot do the job there are other tools that can. You mention the 7zip utility and the Linux/Unix commandline version of 7-Zip that, among others can read and write ZIP format. It claims that if 7-Zip cannot read a zip file, that in 99% of the cases the file is broken. 7-Zip utilities should be able to read your file, so either it is broken or else yours are in the 1% (for which I found no further details).



    7-zip on Linux comes in various executables with different format support. The most basic ( 7zr ), doesn't support ZIP, you should use at least 7za or the full-fledged 7z:



    7za x filename.zip


    Different Linux version package 7za/7z in packages with different names.



    The most easy (as so often) is installing on Solus:



    sudo eopkg install p7zip


    On Debian derived Linux version, the package p7zip only installs the base 7z that doesn't support ZIP. This split-up has caused some problems and installing p7zip-full doesn't do what it says, sometimes you also have to install p7zip-rar On my Linux Mint system I needed to do:



    sudo apt-get install p7zip-full p7zip-rar


    On RedHat/CentOS you need to have the EPEL repository enabled. E.g on CentOS 7 I needed to do:



    sudo yum install epel-release
    sudo yum --enablerepo=epel install p7zip





    share|improve this answer


























    • Thanks, Anthon, that's very informative. Do you know why the zip utility has not kept up? On a related note, is there any password protected method of transmission that I could tell my bank to use that might have a shot at working on a Linux based system without using proprietary software?

      – Faheem Mitha
      Feb 7 '15 at 7:52











    • @FaheemMitha My guess is that pkware wanted to earn more money and is not disclosing the details of the newer formats nor publishing the code as open source. I don't think your bank is going to change just for you, I had problems for several years with slightly non-conform PDF files that evince could not read and I ended up firing up my WinXP VM to do so.

      – Anthon
      Feb 7 '15 at 8:01











    • I don't expect my bank to do anything just for me. :-) But I thought if there was some alternative method available, they might consider using it. In this case, this zipped file was not sent to me via some automated method. It was sent to me by a person at my request.

      – Faheem Mitha
      Feb 7 '15 at 9:36











    • The ZIP format as specified in the "APPNOTES" file is docuemnted by PKWare openly. @Anthon

      – eckes
      Feb 7 '15 at 15:05














    21












    21








    21







    Origin of the error



    The PK in the error stands for Phil Katz, the inventor of the original PKZIP format. The zip utility has not kept up with the capabilities of the pkzip derived commercial software, particularly the certificate storage that banks like to include in their ZIP files.



    Wikipedia gives an overview of the development of the format. But the Unix zip utilities don't implement the changes after the year 2002.



    You might have to buy the PKWARE commercial version for Linux to uncompress this.



    The man page for zip has the following to say for itself and unzip:



       A  companion  program  (unzip(1))  unpacks  zip  archives.  The zip and
    unzip(1) programs can work with archives produced by PKZIP (supporting
    most PKZIP features up to PKZIP version 4.6), and PKZIP and PKUNZIP can
    work with archives produced by zip (with some exceptions, notably
    streamed archives, but recent changes in the zip file standard may
    facilitate better compatibility). zip version 3.0 is compatible with
    PKZIP 2.04 and also supports the Zip64 extensions of PKZIP 4.5 which
    allow archives as well as files to exceed the previous 2 GB limit (4 GB
    in some cases). zip also now supports bzip2 compression if the bzip2
    library is included when zip is compiled. Note that PKUNZIP 1.10 can‐
    not extract files produced by PKZIP 2.04 or zip 3.0. You must use PKUN‐
    ZIP 2.04g or unzip 5.0p1 (or later versions) to extract them.


    Solution



    Although zip cannot do the job there are other tools that can. You mention the 7zip utility and the Linux/Unix commandline version of 7-Zip that, among others can read and write ZIP format. It claims that if 7-Zip cannot read a zip file, that in 99% of the cases the file is broken. 7-Zip utilities should be able to read your file, so either it is broken or else yours are in the 1% (for which I found no further details).



    7-zip on Linux comes in various executables with different format support. The most basic ( 7zr ), doesn't support ZIP, you should use at least 7za or the full-fledged 7z:



    7za x filename.zip


    Different Linux version package 7za/7z in packages with different names.



    The most easy (as so often) is installing on Solus:



    sudo eopkg install p7zip


    On Debian derived Linux version, the package p7zip only installs the base 7z that doesn't support ZIP. This split-up has caused some problems and installing p7zip-full doesn't do what it says, sometimes you also have to install p7zip-rar On my Linux Mint system I needed to do:



    sudo apt-get install p7zip-full p7zip-rar


    On RedHat/CentOS you need to have the EPEL repository enabled. E.g on CentOS 7 I needed to do:



    sudo yum install epel-release
    sudo yum --enablerepo=epel install p7zip





    share|improve this answer















    Origin of the error



    The PK in the error stands for Phil Katz, the inventor of the original PKZIP format. The zip utility has not kept up with the capabilities of the pkzip derived commercial software, particularly the certificate storage that banks like to include in their ZIP files.



    Wikipedia gives an overview of the development of the format. But the Unix zip utilities don't implement the changes after the year 2002.



    You might have to buy the PKWARE commercial version for Linux to uncompress this.



    The man page for zip has the following to say for itself and unzip:



       A  companion  program  (unzip(1))  unpacks  zip  archives.  The zip and
    unzip(1) programs can work with archives produced by PKZIP (supporting
    most PKZIP features up to PKZIP version 4.6), and PKZIP and PKUNZIP can
    work with archives produced by zip (with some exceptions, notably
    streamed archives, but recent changes in the zip file standard may
    facilitate better compatibility). zip version 3.0 is compatible with
    PKZIP 2.04 and also supports the Zip64 extensions of PKZIP 4.5 which
    allow archives as well as files to exceed the previous 2 GB limit (4 GB
    in some cases). zip also now supports bzip2 compression if the bzip2
    library is included when zip is compiled. Note that PKUNZIP 1.10 can‐
    not extract files produced by PKZIP 2.04 or zip 3.0. You must use PKUN‐
    ZIP 2.04g or unzip 5.0p1 (or later versions) to extract them.


    Solution



    Although zip cannot do the job there are other tools that can. You mention the 7zip utility and the Linux/Unix commandline version of 7-Zip that, among others can read and write ZIP format. It claims that if 7-Zip cannot read a zip file, that in 99% of the cases the file is broken. 7-Zip utilities should be able to read your file, so either it is broken or else yours are in the 1% (for which I found no further details).



    7-zip on Linux comes in various executables with different format support. The most basic ( 7zr ), doesn't support ZIP, you should use at least 7za or the full-fledged 7z:



    7za x filename.zip


    Different Linux version package 7za/7z in packages with different names.



    The most easy (as so often) is installing on Solus:



    sudo eopkg install p7zip


    On Debian derived Linux version, the package p7zip only installs the base 7z that doesn't support ZIP. This split-up has caused some problems and installing p7zip-full doesn't do what it says, sometimes you also have to install p7zip-rar On my Linux Mint system I needed to do:



    sudo apt-get install p7zip-full p7zip-rar


    On RedHat/CentOS you need to have the EPEL repository enabled. E.g on CentOS 7 I needed to do:



    sudo yum install epel-release
    sudo yum --enablerepo=epel install p7zip






    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited Apr 30 '17 at 6:52

























    answered Feb 7 '15 at 7:20









    AnthonAnthon

    60.7k17102165




    60.7k17102165













    • Thanks, Anthon, that's very informative. Do you know why the zip utility has not kept up? On a related note, is there any password protected method of transmission that I could tell my bank to use that might have a shot at working on a Linux based system without using proprietary software?

      – Faheem Mitha
      Feb 7 '15 at 7:52











    • @FaheemMitha My guess is that pkware wanted to earn more money and is not disclosing the details of the newer formats nor publishing the code as open source. I don't think your bank is going to change just for you, I had problems for several years with slightly non-conform PDF files that evince could not read and I ended up firing up my WinXP VM to do so.

      – Anthon
      Feb 7 '15 at 8:01











    • I don't expect my bank to do anything just for me. :-) But I thought if there was some alternative method available, they might consider using it. In this case, this zipped file was not sent to me via some automated method. It was sent to me by a person at my request.

      – Faheem Mitha
      Feb 7 '15 at 9:36











    • The ZIP format as specified in the "APPNOTES" file is docuemnted by PKWare openly. @Anthon

      – eckes
      Feb 7 '15 at 15:05



















    • Thanks, Anthon, that's very informative. Do you know why the zip utility has not kept up? On a related note, is there any password protected method of transmission that I could tell my bank to use that might have a shot at working on a Linux based system without using proprietary software?

      – Faheem Mitha
      Feb 7 '15 at 7:52











    • @FaheemMitha My guess is that pkware wanted to earn more money and is not disclosing the details of the newer formats nor publishing the code as open source. I don't think your bank is going to change just for you, I had problems for several years with slightly non-conform PDF files that evince could not read and I ended up firing up my WinXP VM to do so.

      – Anthon
      Feb 7 '15 at 8:01











    • I don't expect my bank to do anything just for me. :-) But I thought if there was some alternative method available, they might consider using it. In this case, this zipped file was not sent to me via some automated method. It was sent to me by a person at my request.

      – Faheem Mitha
      Feb 7 '15 at 9:36











    • The ZIP format as specified in the "APPNOTES" file is docuemnted by PKWare openly. @Anthon

      – eckes
      Feb 7 '15 at 15:05

















    Thanks, Anthon, that's very informative. Do you know why the zip utility has not kept up? On a related note, is there any password protected method of transmission that I could tell my bank to use that might have a shot at working on a Linux based system without using proprietary software?

    – Faheem Mitha
    Feb 7 '15 at 7:52





    Thanks, Anthon, that's very informative. Do you know why the zip utility has not kept up? On a related note, is there any password protected method of transmission that I could tell my bank to use that might have a shot at working on a Linux based system without using proprietary software?

    – Faheem Mitha
    Feb 7 '15 at 7:52













    @FaheemMitha My guess is that pkware wanted to earn more money and is not disclosing the details of the newer formats nor publishing the code as open source. I don't think your bank is going to change just for you, I had problems for several years with slightly non-conform PDF files that evince could not read and I ended up firing up my WinXP VM to do so.

    – Anthon
    Feb 7 '15 at 8:01





    @FaheemMitha My guess is that pkware wanted to earn more money and is not disclosing the details of the newer formats nor publishing the code as open source. I don't think your bank is going to change just for you, I had problems for several years with slightly non-conform PDF files that evince could not read and I ended up firing up my WinXP VM to do so.

    – Anthon
    Feb 7 '15 at 8:01













    I don't expect my bank to do anything just for me. :-) But I thought if there was some alternative method available, they might consider using it. In this case, this zipped file was not sent to me via some automated method. It was sent to me by a person at my request.

    – Faheem Mitha
    Feb 7 '15 at 9:36





    I don't expect my bank to do anything just for me. :-) But I thought if there was some alternative method available, they might consider using it. In this case, this zipped file was not sent to me via some automated method. It was sent to me by a person at my request.

    – Faheem Mitha
    Feb 7 '15 at 9:36













    The ZIP format as specified in the "APPNOTES" file is docuemnted by PKWare openly. @Anthon

    – eckes
    Feb 7 '15 at 15:05





    The ZIP format as specified in the "APPNOTES" file is docuemnted by PKWare openly. @Anthon

    – eckes
    Feb 7 '15 at 15:05













    8














    I ran in to the same problem except with PK compat. v6.3. Solved it by extracting the archive with the 7-zip POSIX version.



    Arch Linux package: p7zip.






    share|improve this answer



















    • 1





      Using 7zip was the best option for me. i.e. 7z x archive.zip

      – Matt H
      Dec 22 '16 at 21:41
















    8














    I ran in to the same problem except with PK compat. v6.3. Solved it by extracting the archive with the 7-zip POSIX version.



    Arch Linux package: p7zip.






    share|improve this answer



















    • 1





      Using 7zip was the best option for me. i.e. 7z x archive.zip

      – Matt H
      Dec 22 '16 at 21:41














    8












    8








    8







    I ran in to the same problem except with PK compat. v6.3. Solved it by extracting the archive with the 7-zip POSIX version.



    Arch Linux package: p7zip.






    share|improve this answer













    I ran in to the same problem except with PK compat. v6.3. Solved it by extracting the archive with the 7-zip POSIX version.



    Arch Linux package: p7zip.







    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Feb 18 '16 at 19:30









    MandarinMandarin

    8111




    8111








    • 1





      Using 7zip was the best option for me. i.e. 7z x archive.zip

      – Matt H
      Dec 22 '16 at 21:41














    • 1





      Using 7zip was the best option for me. i.e. 7z x archive.zip

      – Matt H
      Dec 22 '16 at 21:41








    1




    1





    Using 7zip was the best option for me. i.e. 7z x archive.zip

    – Matt H
    Dec 22 '16 at 21:41





    Using 7zip was the best option for me. i.e. 7z x archive.zip

    – Matt H
    Dec 22 '16 at 21:41











    0














    I ran into the exact same error code (need PK compat. v6.1) while trying to unzip a zip file with the default MacOS unzipper.



    I tried the p7zip and got kind of deep into it before checking the App Store.



    In the App Store, I found a free unzipper app called "Unarchiver" (the first search result as of this writing) and it successfully unzipped the file without any problems.



    For Mac users, I'd suggest using that free "Unarchiver" program.






    share|improve this answer








    New contributor




    Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.

























      0














      I ran into the exact same error code (need PK compat. v6.1) while trying to unzip a zip file with the default MacOS unzipper.



      I tried the p7zip and got kind of deep into it before checking the App Store.



      In the App Store, I found a free unzipper app called "Unarchiver" (the first search result as of this writing) and it successfully unzipped the file without any problems.



      For Mac users, I'd suggest using that free "Unarchiver" program.






      share|improve this answer








      New contributor




      Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.























        0












        0








        0







        I ran into the exact same error code (need PK compat. v6.1) while trying to unzip a zip file with the default MacOS unzipper.



        I tried the p7zip and got kind of deep into it before checking the App Store.



        In the App Store, I found a free unzipper app called "Unarchiver" (the first search result as of this writing) and it successfully unzipped the file without any problems.



        For Mac users, I'd suggest using that free "Unarchiver" program.






        share|improve this answer








        New contributor




        Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.










        I ran into the exact same error code (need PK compat. v6.1) while trying to unzip a zip file with the default MacOS unzipper.



        I tried the p7zip and got kind of deep into it before checking the App Store.



        In the App Store, I found a free unzipper app called "Unarchiver" (the first search result as of this writing) and it successfully unzipped the file without any problems.



        For Mac users, I'd suggest using that free "Unarchiver" program.







        share|improve this answer








        New contributor




        Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.









        share|improve this answer



        share|improve this answer






        New contributor




        Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.









        answered 12 mins ago









        Jonathan SteeleJonathan Steele

        1




        1




        New contributor




        Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.





        New contributor





        Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.






        Jonathan Steele is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.






























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