Opening an MPX File

The MPX file type is primarily associated with Project.

MPX	File extension: MPX
	File type:	exchange file

What is an MPX file?

MPX files mostly belong to Project by Microsoft. MPX is a Microsoft Project Exchange file format introduced in version 4.0 (1994.). It was used for sharing project data with other project management softwares such as Primavera and Sciforma.

File structure: The MPX format defines an ASCII file that allows the transfer of project information that cannot appear in a table, such as detailed resource assignment information, calendar information, and information in the "Project Info" dialog box. This file consists of records separated by carriage returns and line feeds. Within each record are fields that contain information on the project. The types of records and their order are set. While it doesn't have to contain all record types, it always begins with a 'File Creation' record.
Compatibility: The ability to save in the MPX format has been discontinued in version 2000, while the ability to read the format is supported up to version 2010. Other software solutions that can read MPX files include the previously mentioned Primavera and Sciforma.

How to open MPX files

You need a suitable software like Project to open an MPX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your MPX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MPX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online MPX Text Viewer

Choose your .mpx file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert MPX files:

Project by Microsoft
See the previous paragraphs to learn more about the main application. MPX files are often referred to as Project data files because this type of file is primarily created or used by this software.
Alpha Five (temporary index information file) by Alpha Software
Alpha Five is a Relational Database Management System (RDMS) and Rapid Application Development system (RAD) that is used to create Windows and web applications. The MPX file is a temporary file that contains the indexing information generated by a query against a table. These files may be deleted if deemed necessary. This file format is classified as Database. Related links: Overview, https://www.pcmag.com/encyclopedia/term/alpha-five
BasicX Programming Environment (compiler map file) by NetMedia
BX-24 Basic Express is a specific format utilized by the BasicX Programming Environment to program and set up BasicX microcontrollers developed by NetMedia. The MPX file contains a sort of compiler map, however, there exists very limited documentation regarding this file format. This file format is classified as Developer. Related links: Download BasicX
Foxpro (compiler menu file) by Microsoft
FoxPro is a database management system as it supports multiple relationships between multiple DBF files (tables), while also being an object-oriented programming language currently maintained by Microsoft. The MPX file contains a complied menu for a program, where it stores information about the appearance and functionality of a menu that is included within the user interface of the program. This file format is classified as Developer. Related links: Wikipedia, Basics tutorial

MPX file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. The file format can be deduced from the file extension and the signature. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. So you need a detailed analysis of a file to find out the format and the associated program. Our analysis of the MPX files produces the following result:

MPX is not a commonly used file extension and includes different formats for the applicable programs. However, the following two file formats are common:

55% of all MPX files use the ZIP format, that is, an MPX file includes multiple compressed files. An MPX file contains 2 to 50 files, the average being 14. Customary file names are \\commands\, \\commands\1\command.json, \\commands\1\groups\, \\commands\1\groups\2\group.json, \\project_metadata.json, \\sheets\ and \\sheets\0\sheet.json. Tip: If you rename the file ending to .zip and then double-click it, you see the included files and images. A typical file size is 110 KB. Certain words are almost always found in the files, such as /project_metadata.json. Files like these have the following tags: minitab, analysis, data, practica and study.
25% of all MPX files are associated with Microsoft Project exported data. These files are text files, so they contain words and text. MPX files are between 2 KB and 180 KB in size. The keywords 10,$,1,2,",", MPX,Primavera,4.0,ANSI, MPX,Microsoft Project for Windows,4.0,ANSI and 20,Standard,0,1,1,1,1,1,0 are typical for these files. These files are often associated with project.

The remaining 20% of all MPX files are files with no common format, the following 4 formats exist: hoven. These files are often connected to gantt. Just click the "Choose your .mpx file to analyze" button on this page to find out what your MPX file is.

Technical Data for MPX File Extension

File classification:

Data

Related files:

mpj, mtw, mxp, bxm, mpp, mxf, zip, c00, mtb, json, fep, pjx, mp4

Mime type:

application/x-project, text/xml

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: DMCConvert

ProgramID: MSProject.MPX, FileType: Microsoft Project Exchange File (MPX), AppName: Microsoft Project for Windows

ProgramID: QuickTimePlayerExtension, FileType: QuickTime Player Plugin

ProgramID: MSProject.MPX
EXEFile: %ProgramFiles%\Microsoft Office\Office10\WINPROJ.EXE %1

ProgramID: MSProject.MPX
EXEFile: %ProgramFiles%\Microsoft Office\OFFICE11\WINPROJ.EXE %1

ProgramID: MSProject.MPX
EXEFile: %ProgramFiles%\Microsoft Office\Office\WINPROJ.EXE %1

ProgramID: Visual.FoxPro.Menu
EXEFile: %ProgramFiles%\microsoft visual studio\vfp98\vfp6.exe -SHELL

ProgramID: Visual.FoxPro.Menu.5
EXEFile: C:\DevStudio\VFP\VFP.EXE -SHELL

ProgramID: Visual.FoxPro.Menu
EXEFile: %ProgramFiles%\Microsoft Visual FoxPro 8\vfp8.exe -SHELLOPEN %1

ProgramID: MSProject.MPX
EXEFile: %ProgramFiles%\Microsoft Office\Office12\WINPROJ.EXE

ProgramID: Visual.FoxPro.Menu
EXEFile: %ProgramFiles%\Vfp9\vfp9.exe -SHELLOPEN

Show all 11 listings To Top

an mpx exchange file is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with MPX files

Associate the MPX file extension with the correct application.
Update your software that should actually open exchange files. Because only the current version supports the latest MPX file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Project update.
To make sure that your MPX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .MPX file online - secure, fast, and no downloads needed.