LEONARD's Sketch

LEONARD's Sketch is a vector graphics editor for Windows 3.x. It was developed by Gia-Loc Tran, in association with BOK Technologies & Consultants. It uses an .OGF file format.

Discussion
LEONARD's Sketch uses ObjectGraphics (see ObjectGraphics OGL). The OGF format presumably has something to do with ObjectGraphics. The extent to which LEONARD's Sketch's OGF format is unique to LEONARD's Sketch is undetermined.

Identification
OGF files are observed to start with bytes, followed by ASCII "".