Open IDX File

IDX files can have a variety of uses, here are some of them:

Subtitle Files

A file with the IDX extension can be a movie and video subtitle file, and is used to contain the text to be displayed in the subtitles.

They are similar to other subtitle formats like SRT and SUB, and are sometimes called VobSub files. You can open subtitles IDX files with VLC Player.

GPS Navigation Files

IDX files are also used for Navigation POI files.

In this case, the  GPS devices store POIs in the IDX file and the device can refer to it during a trip.

General Index Files

In another use, IDX files are just general index files, that a program creates to refer to faster functions, such as searching through large numbers of files.

Outlook Express Index Files

Another similar index-related file format that uses the IDX file extension is Outlook Express Mailbox Index.

In this case, the program stores an index of messages taken from an MBX (Outlook Express Mailbox) file.

The IDX file is required to import old mailboxes into Outlook Express 5 and later.

Open IDX File on Windows

Open IDX File on Mac OS

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Open IDX file article translations

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