Picture Catalog (Spinnaker .CAT)
From Just Solve the File Format Problem
Picture Catalog (.CAT) is a file format used by at least two Windows 3.x applications by Spinnaker: PFS:Publisher, and Brochures and Mailers. It contains thumbnail images, and other metadata.
It's plausible that the format is also used by the Spinnaker versions of PFS:First Publisher, but this hasn't been determined.
The format is Windows-centric, so it's probably not used by any of the DOS software in the "PFS" family. See also ART (PFS: First Publisher).
Format details
CAT appears to be derived from the IFF "CAT" aggregate format, except that it uses little-endian byte order. The FourCCs remain in the same order as they would in IFF.
Identification
Files begin with ASCII "CAT ", and have "CLIPFORM" at offset 8.
