When I try to open the file it does give me problem details. Does anyone know what this means?

Problem signature:
Problem Event Name: APPCRASH
Application Name: EXCEL.EXE
Application Version: 12.0.6683.5002
Application Timestamp: 520bb25f
Fault Module Name: EXCEL.EXE
Fault Module Version: 12.0.6683.5002
Fault Module Timestamp: 520bb25f
Exception Code: c0000005
Exception Offset: 0058faa8
OS Version: 6.1.7601.2.1.0.256.4
Locale ID: 1033

Additional information about the problem:
LCID: 1033
Brand: Office12Crash
skulcid: 1033