A full spreadsheet, built to be worked on together: formula calculations, named ranges, inline charts, and data validation rules that catch bad entries before they land.

The formula bar supports address referencing (`A1:C10`) and autocomplete, with a function set covering SUM, AVERAGE, COUNT, MIN, MAX, IF, VLOOKUP, and CONCATENATE. Name your own ranges (`Sales_2026`) from the Named Ranges dialog, and jump straight to one from the formula address box. Highlight a range and the status bar works out SUM, AVERAGE, MIN, MAX, and COUNT for you live, without writing a formula.
Build a chart straight from a range, Bar, Line, Pie, or Area, and it renders right there on the grid.
Set conditional formatting by value threshold or a custom formula, format numbers as currency, percent, date, or plain text, style cell borders, and add data validation drop-down lists to keep entries consistent.
Each workbook can hold as many sheets as it needs: add, rename, reorder, delete, and colour-code the tabs. Import and export both CSV and XLSX whenever you need to move data in or out.
Edit the same cell as someone else at the same moment, and a real-time conflict banner flags it immediately, so nobody's change is silently overwritten.