Where can I find an extensive list of file extensions?

Factual Questions
1

eg

.doc - used for word documents
.xls - excel worksheets
.csv - comma seperated variable

2

A google search for extensive list of file extensions brings up http://www.filext.com.

3

Cheers. I had googled for “common file extensions” but that gave me bupkis.

4

I think www.whatis.com also has a link there for “every known file extension in the world.” Unfortunately I’m not at work or I could give you the exact address.

5

Found it: http://whatis.techtarget.com/fileFormatA/0,289933,sid9,00.html

6

thanks to you too missbunny