File extensions are the characters that precede the last period of a file name. It helps us find the type of file we are trying to open i.e. whether it is an audio file, video file, or simply a ...

Many times we receive files whose extension is unknown. This often happens when the sender puts a wrong file extension and it becomes difficult to open the file due to an unknown format. Here is a ...

Windows/Linux: If you've downloaded or received a file with an extension you don't recognize (or with no extension at all), TrID can analyze it and tell you what programs can open it. We've talked ...