Mathcad file compatibility

[MarkHolschuh]

I had Mathcad Prime 2.0 on my old work computer, which saved files in a .mcdx format.  My new work computer has Mathcad15 on it and saves files in a .mcdz format.  I don't seem to be able to open my old files.  Is there a way to open my old files with Mathcad 15?  Or do I need to re-create them?

[MJG · Accepted solution]

See mcdx to xmcd

You can convert Mathcad 15 files (.xmcd or .xmcdz) to Prime (.mcdx), but you cannot go the other way.  You cannot even convert a Prime file to a previous version of Prime (e.g. Prime 3.0 cannot go back to Prime 2.0).

[MarkHolschuh]

Thank you Mark.