You are offerding on a copy of What's Best software by General Optimization, Inc, designed to take "Your Spreadsheets Beyond What If?". This is a linear programming add-in for Lotus 1-2-3, taking it well beyond simple what-if analysis. Also included is a separate stand-alone module designed as an asset/liability bond portfolio tool. Everything (manuals, slip cover, disks) are in excellent condition. Disks are 5 1/4" floppies and are untested as I no longer have the necessary hardware.