File.Types.Explained.At

Welcome to File.Types.Explained.At, the information repository dedicated to files types. File.Types.Explained.At is part of Explained.At - The Information and Knowledge portal.

File types are sometimes also known as file extensions, and the two terms "file types" and "file extensions" can be used interchangeably.

What is a file type? A file type is denoted by the last few letters at the end of a file name that follow after the dot. For example, a file called "default.htm" has the file type of "htm" indicating that it is an HTML file. To complicate matters, Microsoft Windows often hides the file extension, so if you are having trouble determining the file extension then consult our Frequently Asked Questions (FAQ) article *Help determining the file extension*.

This file types repository is intended to help you to answer the common questions of:

• What is this file?
• What is it used for?
• How can I open it?

There are a number of different ways you can navigate around this file type repository:

• You can search the site for what you are looking for ...
• or you can browse through the list of file types. Start by clicking on the first letter of the file type:

• .$
• .~
• .1
• .2
• .3
• .4
• .9
• .a
• .b
• .c
• .d
• .e
• .f
• .g
• .h
• .i
• .j
• .k
• .l
• .m
• .n
• .o
• .p
• .q
• .r
• .s
• .t
• .u
• .v
• .w
• .x
• .y
• .z