Popular File Extensions Default Icons Pack?

[JamesColin]

Hello All,
I'm looking for an Icon Pack which would hold many popular file extensions icons. I'm in fact only interested in small 16x16 icons.

I understand that icons often depends on the software being associated with a specific file extension, but still popular file extensions can have recognizable icons such as .PDF which is indeed the icon coming from Acrobat Reader.

Can you see what I'd like to find? I'm having a hard time even searching for such a pack, formulating my search terms. Do you know where I'm most likely to find such an icons pack?

Cheers,
James