Did your computer fail to open an IDX file? We explain what they are used for and recommend software that we know can open or otherwise handle your .IDX files.
What is an IDX file?
Files that contain the .idx file extension are created by a number of DVD playback applications. These files contain information about the subtitles of a DVD, including the subtitle text and start points for when the subtitles should be shown. The IDX file does not contain any actual video data. The video data is contained in an associated video file that is linked to the appropriate IDX file.
The .idx extension is also given to index files. These files contain indexes to database files in order to help speed up the data requests that are sent to a computer database. Some applications that use .idx file extension for index files include Corel WordPerfect, Microsoft Outlook and Quicken.
Suggest another file format using extension IDX
While we know of one file format using the .IDX file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .IDX file.
Various IDX file openers, viewers, etc.
These apps are known to open certain types of IDX files. Remember, different programs may use IDX files for different purposes, so you may need to try out a few of them to be able to open your specific file.