Trouble with uploading to Movie Maker

I’m brand new to Audacity (been reading/viewing the tutorials/looked at FAQs). I’ve done an audio track and mixed in a sound track. I exported a .wav file to “my documents” and a mp3 file to my desktop. I now would like to upload into Movie Maker (to add images from power point). The “Add Music” button is greyed out; thus, not an option. If I drag and drop or “browse” to get the files into the videos and photos, I get the following message “Movie Maker doesn’t support the selected files” (no doubt be/c it’s not a video or photo files). I’ve submitted to the Windows forum, but no response thus far, so I thought I would try hear too.

Look in the Help (F1) for Movie Maker to see what audio formats it supports.

Try clicking this link .