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My experience is that MS powerpoint files (4 to 19 MB) are successfully transferred OO/SO about 85 to 90% of the time. The real business ppt and pps seem to be transferred fine and it is mostly the joke ones that do not open up correctly in OO/SO. Perhaps it is the extra animations in the joke pps that cause the problem.
The problem with StarOffice/OpenOffice and Powerpoint files is that it will do things like convert what was an editable graph object into a static image, even if you save it back out as a Powerpoint file. Of course it doesn't support the more advanced animation effects of Powerpoint 2002 either. But, on the other hand, I know for a fact that StarOffice/OpenOffice will open some corrupt Powerpoint documents that Powerpoint itself will choke on and refuse to open. (Usually 75-120meg files with corrupt images, etc will choke in Powerpoint but not in StarOffice). I know this since I've used it a number of times to recover customer's files in my job. Too bad it doesn't open Publisher files, that would be useful. <sigh> Needless to say, my employer frowns on this method, but they already frown at me for my Userfriendly.org cartoons and my various Linux T-shirts and "Tux" security badge holder. So one more thing to make them frown doesn't matter much. Though the article I wrote on how to use it for this purpose has dissapeared from our knowlege base mysteriously... :) MattB (I'm not saying who I work for, but the company name starts with an M and ends with a T.)