Is there a site that lists popular file formats?
I am aware that it would be hard to find out which file formats are popular, and I do not need exact popularity, just approximation. I guess companies that develop anti-malware software could have some information about files that are scanned.
I have found a few pages that list all file formats (like http://en.wikipedia.org/wiki/List_of_file_formats), but I need just a few popular ones.
It would be nice if list could be filtered by type (audio, video...) or platform (Windows, Linux, Mac...), but that is optional.
Some background: I am testing file upload for web application, and I do not want to test all file formats, just popular ones.