Using Google™ Spreadsheets

Section 4. Creating, Opening, and Saving Google Spreadsheets

Google Spreadsheets makes it really easy to create new spreadsheets, save the ones you're working on, and reopen previously saved spreadsheets. You can also import your Excel spreadsheets and download your Google spreadsheets in XLS format to work on from within Excel.

Know, however, that Google Spreadsheets is still in beta testing, and that Google has set some limits as to how large a spreadsheet you can work with. At present, Google lets you create a maximum 100 spreadsheets. Each spreadsheet can contain up to 20 tabs (sheets), 50,000 cells, 256 columns, or 10,000 rows—whichever comes first. As to importing existing Excel spreadsheets, Google only lets you import files sized 400KB ...