documents uploaded aren't screened for a .end by file type for automatic categorization.

Let a company create an "upload profile" where their administrator identifies file extensions get default labels.

.step get assigned as STP

.sldprt and .sldasm get assigned as CAD

.pdf get assigned as Drawing

.dxf get assigned as fabrication sketch

so on and so on. Then if doesn't apply at an edge case, the user completing the upload can manually change it.