Export .brd file as .alg.

Hello everyone,
Fellow Altium user here...

I have received a .brd file, and I need to view this file in Altium so as to integrate it into another project. I have tried the import wizard in altium, along a multitude of other ways I have found online, and none of this is working. I am looking for a way to export the .brd file from my OrCAD PCB Designer software so I can view it in Altium. 

All help is appreciated.
Thank you!