Metadata in Word, Excel etc

Is there any program that safely deletes all the hidden 'metadata' that is behind Office programs and can reveal so much to others unaware of it existence?

 

Hi John,
Please explain what "metadata" is and how you know it's there.
regards

 

Microsoft Knowledge Base Article - 290945
HOW TO: Minimize Metadata in Microsoft Word 2002
SUMMARY
This article describes various methods that you can use to minimize the metadata in your Microsoft Word documents


And it's all over the press at the moment to do with the Iraq 45 minutes to doomsday/Dr Kelly subject.

It is the hidden data such as who edited the document at various times, the deleted edited data etc.