.MBX File Extension

File Type:
Outlook Express Mailbox

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

What is a MBX file?

Mbx file extension has Outlook Express Mailbox file type, developed by Microsoft, which is associated with the "data files" category.

Typically used by Outlook Express, the file saves message data. Users can copy mailbox files to a different folder in order to back up the data.

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

mbx file icon
File Type:
Outlook Express Mailbox
Data Files

How to open MBX file?

Double click the mbx 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 .mbx 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 mbx 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".

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 mbx 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 MBX 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 mbx file as well. Download Universal File Viewer for your OS.

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