It's impossible to suggest much without knowing more about the exact error message you see and what changes you made just before it apeared. You should be able to use Windows 7 and Windows Xp ssytems interchangeably here to make changes to your database file. Even using Mac systems will work--though you can encounter a few small issues that may need adjusting if you do.
very strange , i open it a few days later after i post this message ,it work well . I am ready to try to upload another one to see if it worked well