Pfs:Write

pfs:Write was a simple word processor created by Software Publishing Corporation (SPC) in the early days of desktop computing. It was intended for DOS systems, but Apple II versions were also released.

The last version, Professional Write 3.0 for DOS, was released in 1994. Professional Write Plus was developed for Windows 3.x in 1991.

File identification
First 4 bytes are hex values  or   and have an EOF byte of

Sample files

 * https://telparia.com/fileFormatSamples/document/pfsWrite/

Links

 * Pfs:Write : Wikipedia
 * WinWorld Page
 * Apple 2 Emulation @ Archive.org