File Extension Library

What is a file extension?: A file extension is the characters after the last dot in a file name. For example, in the file name "Thumbs.db", the file extension is "db". It helps Windows select the right program to open the file.

We help you open your file: We have a huge database of file extensions (file types) with detailed descriptions. We hand pick programs that we know can open or otherwise handle each specific type of file.

Original downloads only: All software listed on is hosted and delivered directly by the manufacturers. We do not host downloads on our own, but point you to the newest, original downloads.