How To Open File Extension


How can HTOFE.com be helpful for you?


The most important task of our website is to help solve the problems with opening files with different extensions.

If you found our sites without much trouble will find information that will help you start, edit, convert and even save changes to any file regardless of its extension.

Our website is an unlimited source of knowledge that will help even a layman in the field of information technology to solve basically any problem with the file, which he previously could not run.

What is a file extension?

File extension represents a format in which a particular file we want to run is saved. File extension can be found as "hidden" in the file name. It is a sequence of characters after the last dot in its name. Examples:

There are thousands of extensions at the moment, so it is impossible to remember them all. If you have a file you want to open and you haven’t got the right software, visit our site.


File extension The full name of the file Popularity
.CAS file extension Borland Combined C/Assembly Source Code
.HAK file extension BioWare Aurora Engine
._EML file extension Windows Mail Live Email
.SDI file extension QuickBooks Data
.BHX file extension BinHex Compressed File ASCII Archive