A Meshwork model is a data file used by the Meshwork triangle-mesh modeling system from Codenautics for MacOS. It is stored in plain-text format (using PICT resources, apparently in the Resource Fork, for textures).
Files use the
TEXT file type and
Mesh creator code in MacOS.
The first line consists of the keyword
Mesh, and a major and minor version number (of the format, not necessarily the Meshwork program that created it), separated by tabs.