All of my MS Office programs are crashing

[projectgrrl]

Version: v.X
Operating System: Mac OS X 10.5 (Leopard)
Processor: Intel

As of yesterday, all of my MS Office programs are crashing. It began with Excel.

I restored Office from a month old copy on Time Machine today, but still not working.

There were no new system updates yesterday, so I don't know what prompted this issue.

Here is the error when I try and boot Excel:

Process: Microsoft Excel [295]
Path: /Applications/Microsoft Office X/Microsoft Excel
Identifier: com.microsoft.Excel
Version: 10.0.0 (10.0.0)
Code Type: PPC (Translated)
Parent Process: launchd [93]

Date/Time: 2008-09-20 16:45:34.773 -0700
OS Version: Mac OS X 10.5.5 (9F33)
Report Version: 6

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_PROTECTION_FAILURE at 0x00000000bf7fffe0
Crashed Thread: 0

Thread 0 Crashed:
0 ??? 0x858f1deb 0 + 2240749035
1 ??? 0xbf800fe0 0 + 3212840928

Thread 1:
0 ??? 0x800bc4a6 0 + 2148254886
1 ??? 0x800c3c9c 0 + 2148285596
2 translate 0xb818b6ea CallPPCFunctionAtAddressInt + 202886
3 ??? 0x800ed6f5 0 + 2148456181
4 ??? 0x800ed5b2 0 + 2148455858

Thread 0 crashed with X86 Thread State (32-bit):
eax: 0xbf7fffe0 ebx: 0x00000001 ecx: 0xbf8010e6 edx: 0x8588b16c
edi: 0x00000000 esi: 0x00000000 ebp: 0x8080d180 esp: 0xb7fffacc
ss: 0x0000001f efl: 0x00010282 eip: 0x858f1deb cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037
cr2: 0xbf7fffe0

Binary Images:
0xb8000000 - 0xb81d7fe7 translate ??? (???) /usr/libexec/oah/translate

Translated Code Information:
Rosetta Version: 21.03
Args: /System/Library/Frameworks/Carbon.framework/Versions/A/Support/LaunchCFMApp /Applications/Microsoft Office X/Microsoft Excel
Exception: EXC_BAD_ACCESS (0x0001)

Thread 0: Crashed (0xb7fffacc, 0x858f1deb)
0x00000000: /System/Library/Frameworks/Carbon.framework/Versions/A/Support/LaunchCFMApp : + 0
0x95687170: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : CreateVolFSPath(unsigned int, unsigned long, char const*, unsigned long, char*) + 80
0x95686fc8: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : getattrlist_retry(unsigned int, unsigned long, char const*, unsigned long, attrlist*, void*, unsigned long, unsigned long) + 72
0x95686a00: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : GetVolFSAttributes(VolumeInfo*, unsigned long, char const*, unsigned long, unsigned long, FSAttributeInfo*, unsigned long, unsigned long, FSVolAttributeInfo*, unsigned char*) + 612
0x95687ab8: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : VolFSMount::_getattrs(unsigned long, char const*, unsigned long, unsigned long, FSAttributeInfo*, unsigned long, unsigned char*) + 52
0x95687a40: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : FSMount::getattrs(unsigned long, char const*, unsigned long, unsigned long, FSAttributeInfo*, unsigned long, unsigned char*) + 236
0x9568793c: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : GetFSRefAttributes(FSMount*, FSRefPrivate const*, unsigned long, FSAttributeInfo*, unsigned long, char*) + 180
0x956875bc: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : _PBGetCatalogInfoSync + 220
0x956874d0: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore : _FSGetCatalogInfo + 44
0x956ab2fc: /System/Library/Fram