I've experienced cases where one platform will tolerate file corruption that causes a crash on the other. You might test a recovered copy (even if it reports no problems found) of the file and see if that solves the problem.
If it does, replace your file with an undamaged back up.
It looks like you have not updated to FileMaker Pro 8.5v2. I would suggest downloading this update that resolves an issue where saving or exporting to the Microsoft Excel format would cause the application to freeze:-TSDivaFileMaker, Inc.