Question 1

What is the .stl format used for?

Accepted Answer

STL stores triangulated 3D mesh geometry and is widely used in 3D printing and CAD export workflows.

Question 2

Does STL include materials or color?

Accepted Answer

Classic STL is mostly geometry-only. Some variants support color metadata, but many pipelines treat STL as plain mesh triangles.

Question 3

Are my files uploaded to manuals.plus?

Accepted Answer

No. Local drag-drop and Browse loads are processed in your browser. URL loads fetch directly from the source host and require CORS.