the author of this app says:
Quicksheet is the award winning, fully-functional spreadsheet that synchronizes directly with MS Excel. It is also the only Palm Platinum Certified spreadsheet for the PalmB Organizer.
It uses HotSync Technology to automatically synchronize entire spreadsheets to or from Microsoft Excel. Quicksheet includes over 60 built-in functions with support for many scientific, financial, date/time and statistical calculations, and numerous cell-formatting and editing functions. Quicksheet is a powerful tool that allows you to get more out of your Palm organizer.
Quicksheet is used by teachers, doctors, engineers, financiers, managers, investors, lab technicians, machinists, small business owners, corporate executives, movie production studios, librarians and has been licensed by Fortune 100 companies. Whether your needs are simple or complex, Quicksheet provides the most reliable spreadsheet experience on the Palm organizer. Even if you don't use a desktop spreadsheet, you will probably find that Quicksheet spreadsheet affords you the ad-hoc organization of your own information you have been looking for. Why force you data into another application when you can easily access it with Quicksheet?