Determine Associated Program from File Extension

Determine Associated Program from File Extension

Every file is made up of a file name followed by a file extension with a period "." connecting the two.  The file extension (i.e., .docx, .pdf, .mp3) indicates which program created and/or can open the associated file type.

A wonderful online resource exists to help you translate the file extension and thereby determine the associated program.

  1. Click on FilExt-The File Extension Source to access this resource.
  2. Type the file extension in the "Google Custom Search"  box.
  3. Click the [Search] button.

With Appreciation

FILExt - The File Extension Source available on the web at

Keywords: term, word, file, file name, file extension, extention, filename, extension, program, software, file type, type, association, associatied, open, open file, read, read file.

Email this to a Friend

Help Page Feedback

Did this content help you? *

What is your opinion about the content? *

Suggest new content or let us know how we can improve this content (optional):

If you desire a response, please provide your email address (optional):

Leave this field empty