If it is tape as shown in the article I linked, and the tape is 1/4 inch wide; chances are that it is audio. If it is 1/2 inch wide then it could be studio quality audio, or computer data.
You would need to find a suitable player for it (a home computer won't do). Ando if data you would need to know the data format.
I had a couple of these when I was much younger. One was a recorder.player that had 3 inch or so tape reels. It had a built in speaker. Another used 7 inch or so reels, and had RCA jack audio outputs that were connected to my stereo.