Support of csv files with .xls extension
Hi All, Starting with 4.1 csv files with xls extension & also tsv files are opened using writer instead of calc, when opening from the start center or from cli without '--calc'. While it's clear that the tsv part should be fixed (BTW it's a trivial fix [1]), I'm not sure about csv files with xls extension. Users shouldn't expect that after changing the file extension to some random extension, it still would be recognized as a csv by default. But on the other hand the fact that some user opened a bug for it, might indicate that some app\web app generates such files. So what do you think? Should it be fixed, or should we close the bug as WONTFIX? The relevant bug reports are: https://bugs.freedesktop.org/show_bug.cgi?id=68903 (csv with .xls extension) https://bugs.freedesktop.org/show_bug.cgi?id=69290 (tsv) Best Regards, Maxim Monastirsky (When responding, please be aware that I'm not subscribed to the list) [1] https://bugs.freedesktop.org/show_bug.cgi?id=68903#c8 ___ LibreOffice mailing list LibreOffice@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libreoffice
Re: Support of csv files with .xls extension
On Thu, 2013-10-24 at 10:38 +0300, Maxim Monastirsky wrote: > Hi All, > Starting with 4.1 csv files with xls extension & also tsv files are opened > using > writer instead of calc, when opening from the start center or from cli > without > '--calc'. While it's clear that the tsv part should be fixed (BTW it's a > trivial fix [1]), I'm not sure about csv files with xls extension. Users > shouldn't expect that after changing the file extension to some random > extension, it still would be recognized as a csv by default. But on the other > hand the fact that some user opened a bug for it, might indicate that some > app\web app generates such files. So what do you think? Should it be fixed, > or > should we close the bug as WONTFIX? > > The relevant bug reports are: > https://bugs.freedesktop.org/show_bug.cgi?id=68903 (csv with .xls extension) > https://bugs.freedesktop.org/show_bug.cgi?id=69290 (tsv) Well, when the app name is not given, the current detection code relies on the extension to decide which app to open the file with (as you already noticed). I believe we associate "csv" to Calc in this case, http://cgit.freedesktop.org/libreoffice/core/tree/filter/source/textfilterdetect/filterdetect.cxx#n75 so I would say it's also reasonable to associate "tsv" and "xls" to Calc as well. Feel free to propose a patch for this and push it to gerrit. It should be a very easy fix. Kohei ___ LibreOffice mailing list LibreOffice@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libreoffice
Re: Support of csv files with .xls extension
Hi Kohei, great that you responded! Could you also take a look at https://bugs.freedesktop.org/show_bug.cgi?id=70100. There is a file which is detected by Excel 2010 as 'Excel 2' sheet and LO also sets the excel4 filter, but it fails in isExcel40 function from sc/source/ui/unoobj/exceldetect.cxx because it has a value like in BIFF5. Thanks in advance, Maxim Monastirsky ___ LibreOffice mailing list LibreOffice@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libreoffice
Re: Support of csv files with .xls extension
On Thu, 2013-10-24 at 16:34 +0300, Maxim Monastirsky wrote: > Hi Kohei, great that you responded! > > Could you also take a look at > https://bugs.freedesktop.org/show_bug.cgi?id=70100. There is a file which is > detected by Excel 2010 as 'Excel 2' sheet and LO also sets the excel4 filter, > but it fails in isExcel40 function from sc/source/ui/unoobj/exceldetect.cxx > because it has a value like in BIFF5. The key here is that the bug report mentions that this xls file is generated by a third party software, which may write incorrect BOF ID for the files it generates. Ultimately the answer lies here: http://opengrok.libreoffice.org/xref/core/sc/source/filter/excel/read.cxx#145 Looks like our import filter code itself ignores this BOF ID and lumps 0x0809 toger with the ID's for BIFF2-4. If that's what the import filter does, then we should probably do the same in the file format detection code as well i.e. add 0x0809 to the list of "correct" BOF ID's for Excel 4.0 format or earlier. This shouldn't affect detection of more recent Excel file formats, since those formats use OLE to store workbook and other streams, and we use that to detect those versions, not the BOF ID's. As with the earlier bug you cited, this one should be an easy fix as well, and I believe you already have a fix for this? Kohei ___ LibreOffice mailing list LibreOffice@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libreoffice
