The area calc can either be scripted or you can manually find it through SolidWorks/Etc. As for the scripting, your license distributor should be able to help. There are a lot of steps.
On the SolidWorks side, depending how complicated your geometry is, you can get the area by importing your data as cloud data. We just spent some time last week figuring this out. I've attached a .pdf, so if you don't see it let me know.
Thanks