You have no need to convert your video format to other one. You just need to download and install a player that supports the file format. Try to use Quicktime player or VLC player. Both of them are able to play video in different formats. If you meet the problem of Quicktime can’t play MP4. You can handle this problem by the following guide.
Step 1: Have a full check on QuickTime player. You need to check whether there are any other reasons that result in the failure of playing MP4 in QuickTime. For example, make sure QuickTime has been updated to the latest version. Additionally, check that whether the MP4 files are all in the good conditions without any damage.
Step 2:
Locate the MP4 codec. If all other conditions have been check and both the MP4 files and QuickTime are all in good conditions, then another major reason that QuickTime won’t open MP4 files is the lack of MP4 codec. Next, what you need to do is to search for MP4 codec over the Internet. There are a lot of MP4 codec to be downloaded from the Internet. Here I will strongly recommend you to download and install the several MP4 codec for QuickTime below.
