Can this be fixed?

[rootbeer]

Today I was trying to upload an instrumental piece I had recorded and it would not upload; wrong file type.  So I tried to convert this music and my conversion program could not find it.  My son figured out that the problem was the file had no file extension; it's not mp3 or wav or anything.  How could this happend and can it be fixed?  Changing the file name doesn't do it.  Any ideas?

[Babs]

what did you record it in? try renaming it with .wma and see if it works. alot of programs record as wma.