File Extension MPEG4

  • Full name
    MPEG-4 Video Format
  • Developer
  • Popularity
Have you encountered a problem with a MPEG4 file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a MPEG4 file here. In the further part of this page we have added a list of programs that should open your MPEG4 file. It is enough you choose a proper application for your operating system, download and install it.

Programs which can open a MPEG4 file

How to open file with MPEG4 extension?

In order to open a file with MPEG4 extension one of the following programs must be installed on user’s system. If a problem with opening MPEG4 file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with MPEG4 files, follow the instructions below.
Install QuickTime Player or other program from the list

Most often resolving problems with opening MPEG4 files is very simple. Just install an appropriate program that supports such files. All of the listed programs support MPEG4 files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of MPEG4 files or offer file conversion options, but may not be capable of editing such files.

Set QuickTime Player as the default program for opening MPEG4 files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate MPEG4 files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the QuickTime Player applications is not on the list, select "Browse" option in order to manually locate the directory where QuickTime Player has been installed.


Check the section that lists most common problems with MPEG4 files

Sometimes problems with opening MPEG4 files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • MPEG4 files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open MPEG4 files (should that be the case, please contact your system administrator or IT specialist)
  • MPEG4 file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)

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