.slc is 3D Systems SLiCe countour data
Key Features: .SLC File Extension
What is an .SLC file?
The slc file extension is mainly known to be used for a "21/2D" contour representation of a CAD model. It consists of successive cross-sections taken at ascending Z intervals in which solid material is represented by interior and exterior boundary polylines.
SLC data can be generated from various sources, either by conversion from CAD solid or surface models or more directly from systems that produce data arranged in layers, such as CT-scanners.