In terms of features, NeoOffice (donations accepted) is huge, truly a viable alternative to Microsoft office. It includes all the basic components: Writer, the Word processing component; Calc, for spreadsheets; Impress, the presentation module; draw, for the creation of graphics and diagrams; and Base, the database component. The spreadsheet component has some sophisticated features like Advanced DataPilot technology, Natural language formulas, an Intelligent Sum Button and a comprehensive range of advanced spreadsheet functions.
Thirdly, you can start use a spreadsheet program to schedule your time or organise all kinds of stuffs. You can use it to un-clutter you life by having different checklist on spreadsheets. After you learn the basics of spreadsheet programs, you can come up with more creative ways to use it in your daily life. You can even use a spreadsheet program to assist your weight loss plan. Use it to record your daily food intakes and you weight.