Not directly as Stuart mentioned but it still might be able to run if you can put some work into it. You may have a bigger problem though...
Mazatrol programs aren't downward campatable... at least not fully. So you may run into a problem anyway even if you had Mazatrol because their Mazatrol output may be from a much newer control. Just figure that there could be a 4 generation gap between your control and today. This is because options would change, protocols would change, layouts (base code) would change, TPC structure, parameters, etc...
However, and this might not be worth it.... You could have them output their programs in 3 digit code format. This looks like G codes but with a much different format. Then, as long as they told you what model control it came from, you can decipher the code into a part form, draw it on your CAD and post your own code. PITA but it can work. But there's no money doing it this way...
This is how I used to program in Mazatrol offline before the days of Mazacam, Griffo Bros, CamWare, etc for Mazatrol programs. It's easier from a drawing but if you're having to come from one code, create a drawing to create another code, its not worth it.
Is there some reason they won't let you program it from a drawing? Also, check if it's Mazatrol CONVERSATIONAL program or Mazatrol EIA/ISO program. Might sound dumb but I know many people that refer to the EIA code as a Mazatrol program simply because it runs on a Mazatrol control.
Stuart:
MazaCam (Geopath) is the only program I know that will will let you vreate a Mazatrol
There's also Griffo Brothers and CamWare (from Mazak) and a couple other that are add-ons like Camaix.
As far as I know though, you can't convert from Mazatrol to EIA directly.
You can on CamWare and I think on MazaCam now as well. It is also a control option for Fusion and Matrix to convert Mazatrol to G code on output. I can't remember if it was available on the earlier controls.