Open 0xr.space, press Open and choose the .off. The text format is read in the browser, with faces of any number of corners split into triangles. COFF's vertex colours are kept, written from 0 to 1 or 0 to 255, NOFF's normals are used and 4OFF's fourth coordinate is divided out. You can turn the mesh, cut through it or place it in the room on a Quest.
OFF has no unit, so its numbers are read as metres; a model from a dataset in other units opens at the wrong size until you scale it. Per-face colours and texture coordinates are skipped, and a mesh without colours is drawn light grey. Binary OFF is not read, only the text kind. Nothing is uploaded.
Text OFF and its prefixed kinds: COFF with vertex colours, NOFF with normals, STOFF with texture coordinates, which are skipped, and 4OFF, combined in that order, such as CNOFF.
An OFF file has no unit, so the numbers are read as metres. Scale it by hand to the size it should be.
Colours written after a face's corners are skipped. Colours written on the vertices, as COFF does, are shown.
Yes. On Home, open the three-dot menu on its card and press Download STL or Download GLB. Downloading needs an account.
No. It is read on the device, and nothing is sent to a server unless you create a share link yourself.