OpenOffice Calc is just one of more than 230 applications available in the cloud on rollApp. Check out the full list at https://www.rollapp.com/apps. PLEASE NOTE: - Working with files requires creating account with rollApp and connecting cloud storage (Google Drive, Dropbox, OneDrive or Box) - Free rollApp account allows to access your files in read-only mode. Please, subscribe for rollApp Premium to be able to save files Apache OpenOffice Calc is a powerful spreadsheet program with advanced data processing functionality. It is compatible with Microsoft Excel.