I'm running OpenOffice 3.4 on Windows 7 and trying to edit a document created several years ago in Excel and modified numerous times since in OO. It's a multi-sheet workbook but not really large. The last edit was approx Oct 3rd on the same device, OS, and version of OO. When attempting to open the doc, I get a separate window General Error - General input/output error and the doc doesn't open. I tried opening the file on another PC (Windows XP and OO 3.3) and got the same error. The file still has content; file size is 68k. I was able to find a backup of the file dated Sept 26th, but not the latest edit. I was able to open the old backup copy and edit it. However, I think I've lost some data because I can't open the version with the most recent data in it. Any ideas?
OpenOffice 3.4 on Windows 7