Building a spreadsheet

Sheets are real spreadsheets — a formula engine, multiple tabs in one workbook, cell formatting, and .xlsx round-tripping so files move in and out cleanly.

To create one:
1. Open Documents (/documents) and pick the Sheets pill.
2. Press "+ New Sheet". The workbook opens with one empty sheet.
3. Type values, or start a cell with "=" to write a formula. Formulas are Excel-compatible syntax, so what you already know carries over.

To open a file you were sent, press "Upload .xlsx" on the Sheets gallery. Your tabs, values, and formulas come across as a live workbook.

To send one out, press "Export .xlsx" in the editor's toolbar. There is also a push to a connected sheets service when one is configured.

Stuck on a formula? The Wally rail on the right of the editor can write one for you — describe what you want ("a SUMIF for orders over $1000"), press Formula, and apply the result into the selected cell. It writes into the cell you have selected, so pick the target first.

Saving is automatic on a debounce, with a Saving / Saved indicator next to the workbook title.