the author of this app says:
This application is a port of the UNIX spreadsheet. This version is alphaware, so it is still under development.
This version of Abacus will compute more than 60 functions, as well as support tables with 4,096 rows and 128 resizable columns. The application is set up to mimic the similarities of many well-known spreadsheets, like Excel.
The program will only synchronize with Linux.