Online file extension database. free programs to open any file extension!
Filext.com is the file extension source. here you'll find a collection of file extensions; many linked to the programs that created the files. this is the filext home page.
Fileinfo.com is the central file extensions registry and serves as the universal database of file associations.
Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.
File extensions, file associations and file formats info (note: alternate search that attempts to go straight to the extension's page instead of the search results page of potential matches.)