How to get new Files to install on a Mac? I figured it out.

Download a BBLX file, a pc based e-sword file and head to e-sword to download a converter

to download a PC based converter that will convert a BBLX to BBLi which is able to run on a Mac.
Once its converted to a BBLi file head to e-sword X and go to file->resources->Import to upload a BBLi file.

Quixopix about e-Sword X: Bible Study Extreme, v3.0