.ppsx (Office 2007 slideshows) files not recognized

thank you for your bug report, could you add an example to the bug? what ubuntu version do you use?

I don't have access to Office 2007 and OO.o can't write those files, but you can try the fifth result from this link (that's what I used):
http://www.google.pl/search?q=filetype%3Appsx

The file is recognized as application/zip, whereas it should be recognized as:
application/vnd.openxmlformats-officedocument.presentationml.slideshow
when the extension is changed to .pptx, this format is recognized as:
application/vnd.openxmlformats-officedocument.presentationml.presentation
and can be opened by OpenOffice 3.0 as Microsoft PowerPoint 2007 XML, although I have to manually select the filter.

This type of file should be opened by OpenOffice.org in presentation mode, instead of in the editor (I heard this is the behaviour with PowerPoint).

I'm using the current dev version of Ubuntu Jaunty.

could you add any example to the bug rather than giving random urls to other websites? you tried on an example no? that would make the job easier for everybody there

I don't think I can attach someone's presentation lifted from a website to without any permission, and as I said I don't have access to Office 2007 to create one myself...

Example direct link (under 400 KB): www.keystoneparalegals.org/KeystoneAlliance.ppsx

Somebody just sent me a PPSX file and I ran into the same issue (using Jaunty up-to-date as of today).

According to Wikipedia[1] PPSX is a "Microsoft Office 2007 XML Show" document. Ubuntu recognizes it as a ZIP file. If I change the extension to PPTX, it's associated with OpenOffice.org Presentation. If I open it, I still have to select a filter however. Selecting the "Microsoft Powerpoint 2007 XML" filter opens it successfully.

Proposal: associate PPSX with OpenOffice.org Presentation just like PPTX because OO.org can open the file type.
Caveat: I don't know anything about Microsoft Office so I might be wrong. But in that case this bug could be closed as WONTSOLVE.

[1] http://en.wikipedia.org/wiki/Microsoft_Office_2007_filename_extensions

I finally got around to creating a sample PPSX on my brother's computer. The file is identical to pptx, or at least can be opened as such by OO.o - the only difference is the filename extension, and that it should open directly in slideshow view, not in the editor.

Sebastien : Occurs in Karmic, .ppsx are recognised as archive whereas they should be associated with OOo which can open them directly using OOo Impress flawlessly.

Nominating it for Karmic as it's to my mind something not too difficult to fix, software is here to open them and its a problem for normal users.

I can confirm the issue on Karmic. Note that I've had a look at the package in Lucid, and it's not fixed there.
It seems to me that all that's needed is to add an entry for "application/vnd.openxmlformats-officedocument.presentationml.slideshow" in /usr/share/mime/packages/freedesktop.org.xml. I don't know where to look for the upstream reference version of this document, though.

IMHO, the importance of this bug should be bumped. It's easy enough to work around it for an advanced user, either by changing the file's extension or by selecting "Open with another application", but it's just not a reasonable solution for normal users. To them, the only conclusion will be: "Ubuntu cannot open my presentation".

I reported the bug upstream (https://bugs.freedesktop.org/show_bug.cgi?id=26276) and attached a patch there.

Thank you for your work there

This bug was fixed in the package shared-mime-info - 0.70-1ubuntu1

---------------
shared-mime-info (0.70-1ubuntu1) lucid; urgency=low

  * debian/patches/001_git_openoffice_slideshow.patch:
    - define openoffice presentation mimetype too, thank Olivier Tilloy
      (lp: #344198)
 -- Sebastien Bacher <email address hidden> Thu, 28 Jan 2010 18:54:52 +0100