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 -- .ppsx (Office 2007 slideshows) files not recognized https://bugs.launchpad.net/bugs/344198 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to shared-mime-info in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs