Free file extensions PSD is shared by Mikael on Dribbble. These are are 63 file type/extension icons he created for a recent project. You are free to download and use it in your projects.
You can also download Free Metro Tiles UI Kit.
Just click the link below to visit the source link.
[button link=”http://dribbble.com/shots/1333435-File-Extensions-Freebie-PSD/attachments/188451″ size=”large”]Download[/button]