.MPX File Extension

File Type:
Microsoft Project Exchange File

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

What is a MPX file?

Mpx file extension has Microsoft Project Exchange file type, developed by Microsoft, which is associated with the "data files" category.

Associated with Microsoft Project, the file contains the project plan, using an ASCII text format rather than the .MPP format. The file allows transmitting project-related data between both different Microsoft Project versions and third-party programs.

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

mpx file icon
File Type:
Microsoft Project Exchange File
Data Files

How to open MPX file?

Double click the mpx 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 .mpx 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 mpx 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 mpx 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 MPX files

  • Windows Windows
  • MacOS MacOS
    • ProjectWizards Merlin ProjectWizards Merlin
    • Stand By Soft RationalPlan Stand By Soft RationalPlan
  • Linux Linux
    • Stand By Soft RationalPlan Stand By Soft RationalPlan

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 mpx file as well. Download Universal File Viewer for your OS.

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