File Extension Database

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.

Frequently associated Windows objects:

SqlServerReplication.Idx

How Can I Open IDX File on Windows

We researched and learned that the best way to open IDX file is to find a IDX file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a IDX file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open IDX file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as IDX file opener then try to search online for "IDX viewer", "application to open IDX file" or "open IDX file" queries in the search engine you like.
Install the application you found and check if it can open IDX file

How Can I Open IDX File on Mac OS

We recommend to find a IDX file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a IDX file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with IDX file.
If you know the Mac OS application which can work as IDX file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open IDX file in it.
If you don't know the application which can open IDX file then try to search for "IDX viewer", "application to open IDX file" or "read IDX file" queries in the online search engine you like.
Install the application you found and check if it can read IDX file

How Can I Open IDX File on Android

If you downloaded a IDX file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded IDX file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "IDX".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "IDX viewer", "IDX file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open IDX File on iPhone or iPad

To open IDX File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the IDX file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "IDX". This way you can find apps which can open IDX files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "IDX viewer" or "IDX file" online in your favorite search engine.

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