Detect File Types For Files With No Extension

As a web developer or anyone who uses a PC extensively, you may come across a file that has no file extension and the name and filesize give you no clues to make a guess as to what it might be.

I found this little program that does just that. It actually opens the file and tries to detect the file type by comparing it’s structure to a library of known structures.

You can get it free here:
http://filext.com/faq/files_with_no_extension.php

Make sure that once you get the program, you then get the library (packaged as a .rar) or the program will be useless. The library download is available on the same site as the install. Just unpack the .rar into the same directory as the .exe and you’ll be good to go!