The Wayback Machine - https://web.archive.org/web/20110106224620/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/fileextension
Home arrow SEO Resources arrow Glossary

SEO Newsletter

SEO Newsletter


Receive HTML?


Glossary of Computer and Internet Terms
A glossary of computer and Internet terms with definitions that are easy to understand.
Glossary Search:

Begins with Contains Exactly matches
View Glossary
Submit Term



File Extension

A File Extension is a letter code at the end of a file name that shows what type of file it is. The code .txt shows that it is a text document. The majority of file extensions are three characters long however they can be one to five long. A file extension will also provide information to the computer about which operating system should be used to open it.