Bulk Custom Property Changes and Additions to a Lot of Weldment Profiles

Hi

We are currently using SW 2017

I would like to modify our weldment profiles to match our company description specification and also update the material so that the weldment part takes on the material as designated in the part file that is created.

for example, I need the description to read; ANGLE, EQUAL, 20 x 3 (I could live with ...20 x 20 x 3 if easier)

All our profiles are single files;

I obviously have a huge number of files to work through. I am definitely not doing this one at a time. Is there a way to do this in batch?

SolidworksWeldments