I had an old version of Mathcad (version 7) running on an old computer (running Windows 2000). That computer recently died, but I have several .mcd files saved.

I doubt there is an upgrade path for me; my version was too old.
And 95% of the time, I used it to graph data that came from elsewhere, so I don't need a full version of Mathcad. I would just need a simple graphing software.

My question is:
Is there some way to extract the data from those old .mcd files without getting another copy of Mathcad?

(I haven't tried Octave or any of the other free packages, but am wondering if Octave, or others, offers the option to open .mcd files?). I need just the data. The graphs can be re-made easily.

Any suggestions?