What Is Mpx

[reminder]

Recently, I have come across an audio file which ends with .mpX

What is .mpX and how do I play this file

[4th gen]

.MPX

Microsoft Project export file (filename extension).

Source (http://www.really-fine.com/File_Type_M.html)

I'm guessing this isn't what you mean though...try Google (http://www.google.com) ;)

edit: could be this (http://filext.com/detaillist.php?extdetail=MPX) (RCA/Lyra Handheld MP3 Player File)

[reminder]

thanks for the reply. I have found out that by changing the extension from .mpx to .mp3, I can play the file in normal mp3 players