Excell 2007 Event ID 1000

[aunij]

We keep getting this error on an Window 7 64bit desktop
It happens 2 or 3 time a day
Can anyone perhaps make any sense of the associated event details as
below
Any help greatly appreciated

Log Name: Application
Source: Application Error
Date: 19/04/2010 16:22:34
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: xxxx.xxxx.local
Description:
Faulting application name: EXCEL.EXE, version: 12.0.6524.5003, time
stamp: 0x4b4fba46
Faulting module name: EXCEL.EXE, version: 12.0.6524.5003, time stamp:
0x4b4fba46
Exception code: 0xc0000005
Fault offset: 0x003a50f2
Faulting process id: 0x1484
Faulting application start time: 0x01cadfb8bfa89d03
Faulting application path: C:\Program Files (x86)\Microsoft Office
\Office12\EXCEL.EXE
Faulting module path: C:\Program Files (x86)\Microsoft Office
\Office12\EXCEL.EXE
Report Id: 60b463b3-4bc7-11df-97fd-a4badb026d12
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2010-04-19T15:22:34.000000000Z" />
<EventRecordID>4534</EventRecordID>
<Channel>Application</Channel>
<Computer>JONWILLIAMS-PC.acrossworld.local</Computer>
<Security />
</System>
<EventData>
<Data>EXCEL.EXE</Data>
<Data>12.0.6524.5003</Data>
<Data>4b4fba46</Data>
<Data>EXCEL.EXE</Data>
<Data>12.0.6524.5003</Data>
<Data>4b4fba46</Data>
<Data>c0000005</Data>
<Data>003a50f2</Data>
<Data>1484</Data>
<Data>01cadfb8bfa89d03</Data>
<Data>C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE</
Data>
<Data>C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE</
Data>
<Data>60b463b3-4bc7-11df-97fd-a4badb026d12</Data>
</EventData>
</Event>

Thanks Auni Jaffer