When I save a file in the Excel 2007 default save format, it somehow creates
an error when I try to reopen the file. The message states that "Excel has
encountered a problem and needs to close". The error report is reprinted
below:

AppName: excel.exe AppVer: 12.0.4017.1004 AppStamp:4455214f
ModName: excel.exe ModVer: 12.0.4017.1004 ModStamp:4455214f
fDebug: 0 Offset: 0001cd55

This problem does not occur when I save and open the file in Excel 2003
format.