Files with the extension .MPJ contain an HTML documentation project created in older versions of Adobe RoboHelp. In the software, help files of any type can be saved with the extension .HHP.
MP3 is short for MPEG-1 Audio Layer-3 and is probably the most popular audio data file format in the world. This compressed audio format was created in early 1990s by Moving Picture Experts Group (MPEG).
After converting the file to the new format, you will be able to use other programs to support it. Keep in mind, however, that the MPJ file after converting to MP3 may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from MPJ to MP3 to be the same, you have to do this carefully and choose the proper application from the list below.
There is no guarantee, of course, that the conversion will come up to all your expectations, but it will certainly help you. If, after all, the effect of converting MPJ to MP3 does not meet your expectations, you can simply try to find on the Internet a different version of your file in MPJ format, properly converted to a MP3 file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file MPJ the desired result was not achieved, you can try to change the format of MPJ file to other than MP3. On our website you will find more information on the following conversion options
Unfortunately, if after performing the two previously described steps (trying to find your MPJ file converted by someone else, and the attempt to convert it to MP3 on your own) you still have a problem with your file, then there are only a few solutions left. You can once again try to find and install an application that can open the MPJ file in its original format (without conversion to MP3 file). Such a solution will be difficult to implement, but it certainly will give the best result.