File Format Game!

Hello! I'm trying to back up my computer, and am trying to think of files I may have forgotten, so I thought I'd turn it into a game!
How many file formats can you name?
(JPEG, CR2, MOV, etc).
GO!

docx,xlsx,pptx,doc,xls​,xlsm,ppt -> MS Office
pdf,ps,dvi -> print ready documents
tex -> typesetting environment
jpg,jpeg,bmp,png,gif,t​iff -> image formats
psd,psb -> photoshop
ai -> adobe illustrator (think that's the extension)
wav,wma,mp4,mp3,ogg,fl​v,aac -> audio and video
zip,gz,rar -> compresison (also tar.gz -> gzipped tarball)
exe,msi -> installers
txt,rtf,html,php,css,a​spx -> plain text files - for text or web usage
iso -> disc image file
f,f90,java,c,cpp,h,cs -> programming related

I guess I could find some more if I really wanted - from files on my home computer and my uni computer, including some exotic ones, such as fluent files . But that's all I can think of right now.

Nice! Beats my list!

I think GIMP's files are .XCR, right?

D. Vance wrote in post #14587329
I think GIMP's files are .XCR, right?

I'm not sure, I don't use GIMP.

Another one: .cab -> cabinet files, a type of archive.

D. Vance wrote in post #14587329
I think GIMP's files are .XCR, right?

im pretty sure they are.. havent used gimp in a while

An old friend I've met again - maple worksheets: mw

.avi = Video

.mpg