I need to view a file that originated in a program called CADStd. This produces a .CAD filetype. Unfortunately, I'm on a MAC and this program is only available on Windows. Is there any other software that will be able to open this file type?
There are free programs available at Source Forge. This is a repository for free open source software? There is a free CAD program BRL-CAD. This code is widely used and actively maintained. It should be able to open your .CAD file. It runs on a Mac.
There is also another CAD program available called Free Cad. This program has been recently updated and has almost 3000 downloads this week. You can read about them at the links provided.