ProgramData is a hidden folder in Windows. Either turn on the display of hidden files and folders in File Explorer, or type in the path in the address bar at the top.
You can find the location(s) where AutoCAD is looking for plot style files for your active AutoCAD Profile in the Options dialog, on the Files tab. Expand the Printer Support File Path node and the Plot Style Table Search Path node under that, to see the path(s) that are currently set.
(FWIW, the STYLESMANAGER command opens File Explorer to the Documents folder on my computer, which is not where the plot styles are kept. I know the guy who set up the deployment, and I blame him.)
David Koch
AutoCAD Architecture and Revit User
Blog | LinkedIn
