RFFlow

RFFlow is a graphics program that allows you to easily draw flowcharts, organization charts, and many other kinds of diagrams.

File Identification
FLO file headers begin with ascii "" followed by 01, 02, 03, 04, 05, 06, 07 depending on version.

Sample Files
RFFlow 5 Sample Files

Software

 * RFLOW Version 1 emulated @archive.org
 * Free FLO viewer

Links

 * RFF Electronics website