PFS Professional Plan (1987) 1 Spreadsheet DOS

PFS: Professional Plan is a spreadsheet program that offered more features than Lotus 1-2-3. It can read and write Lotus 1-2-3 1.x and 2.0 files, has advanced formula and macro capabilities, a large choice of built in report writing options, and built in Presentation Graphics. Earlier version went by the name PFS:Plan

• 1.x

ProCalc 3D (1992) 3 Spreadsheet DOS

ProCalc 3d is a low-cost spreadsheet created by Formalsoft and sold by Parsons Technology.

• 1.x

Professor DOS (1986) 1 Education DOS

Professor DOS, from INDIVIDUAL Software, is a friendly interactive training guide that helps you learn how to use DOS on your IBM PC or compatible computer.

• 2.x

Professor WINDOWS (1990) 1 Education DOS

Professor WINDOWS, from INDIVIDUAL Software Incorporated, was a best selling Training program for and about Microsoft Windows 3.0. There was also a "Professor DOS"

• Win 3.0

Quattro Pro (1987) 20 Spreadsheet DOS Windows

Quattro Pro, initially just named "Quattro", is a spreadsheet application from Borland International. It competed against Lotus 1-2-3 and Excel, and had several advantages including tabbed sheets, and the ability to handle up to a million rows. Quattro Pro was the subject a lawsuit by Lotus, simply because because Quattro Pro copied their menu user interface, but Lotus claimed this was not allowed. This also affected The Twin and VP-Planner.

• 1.0
• Pro 1.x
• 2.x
• 3.x
• SE 1.0
• 4.x (DOS)
• 5.x
• 5.6 (DOS)