.IDX File Extension

Developer:
N/A
File Type:
Outlook Express Mailbox Index File
Popularity:

Having trouble opening .idx extension? Don't panic! This page explains what idx files are as well as suggests programs you may use to open idx files. You can download these programs through this page.

What is a IDX file?

Idx file extension has Outlook Express Mailbox Index file type, which is associated with the "text files" category.

Associated with Outlook Express, the file contains an index of mail messages, saved in an .MBX file. It may also be used for transferring Outlook Express mailboxes to Outlook Express version 5 or later.

To learn how you can open the given file, read the information below.

idx file icon
Developer:
N/A
File Type:
Outlook Express Mailbox Index File
Category:
Text Files
Format:
N/A

How to open IDX file?

Double click the idx file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .idx extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the idx extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".
4.415.777 downloads

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the idx file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open IDX files

  • Windows Windows
    • Microsoft Outlook Express Microsoft Outlook Express

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the idx file as well. Download Universal File Viewer for your OS.

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