File Extension/MPP
alphabetical list of extensions

File extension .MPP

Description of the problem
If you have on your computer a .MPP file that you cannot open, you are in exactly the same situation as thousands of other people who have similar problems with this or any other unknown file.

There may be several reasons why you cannot open the file with .MPP extension. Directly on this website you can find a solution of the most common problem with the .MPP file – that you do not have on your computer the appropriate program to open the file.
Solution
From the list below, select the appropriate program, install it and double click on the icon of a file that did not want to open - the problem with the .MPP file extension should be solved. However, if this does not happen, go back to the website to learn about other possible causes of the error, which have been described at the bottom of the website.
Category
Data Files
Developer
Microsoft
Popularity
StarStarStarStar
File name: Microsoft Project File
Programs that will open this file:
Windows
Windows
Housatonic Project Viewer Housatonic Project Viewer
K-SOL Project Reader K-SOL Project Reader
LiveProject Viewer LiveProject Viewer
Microsoft Office Microsoft Office
Microsoft Project Microsoft Project
Office 365 Office 365
OpenProj OpenProj
Project Viewer Project Viewer
RationalPlan RationalPlan
Mac OS
Mac OS
OpenProj OpenProj
RationalPlan RationalPlan
RationalPlan Project Viewer RationalPlan Project Viewer
Linux
Linux
MOOS Project Viewer MOOS Project Viewer
OpenProj OpenProj
RationalPlan RationalPlan
Category
Data Files
Developer
MobileFrame
Popularity
StarStarStar
File name: MobileFrame Project Publisher File
Programs that will open this file:
Windows
Windows
MobileFrame Desktop MobileFrame Desktop
Remember!
The .MPP file extension can correspond to several not related file formats. If there is more than one file format with the .MPP extension, you will probably find most of them at this website. Remember that you need to download a program to support a particular file type. So first look through the entire contents of the website to select a program to support just the file you have.

Other possible reasons why your .MPP file does not want to open

In addition to the problem described above, i.e. the lack of the appropriate application to support the .MPP file, there may be several reasons that cause problems with opening and operation of the data format:

1. Incorrect version of the installed application

A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .MPP file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .MPP file, so download the update and check again.

2. Incorrect .MPP file association with the program

If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:

  • Right-click the .MPP file
  • Go to the "Open with" - then "Choose default program ..."
  • Locate the appropriate application
  • Click "OK"

3. The file is corrupt

It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.