About This Tool

How to Use
  1. Click any cell to select it, then type to enter a value or formula
  2. Start formulas with = (e.g. =SUM(A1:A10), =AVERAGE(B1:B5))
  3. Use the formula bar at the top to view and edit the selected cell
  4. Press Tab to move right, Enter to move down, arrow keys to navigate
  5. Import a CSV file with the Import button, or export your data with Export CSV
  6. Apply bold, italic, or alignment formatting with the toolbar buttons
Common Use Cases
  • Quick calculations without opening a full spreadsheet app
  • Analyzing CSV data in the browser
  • Building simple budgets or trackers
  • Learning Excel-compatible formula syntax
  • Sharing data as a downloadable CSV
Tips & Tricks
  • Use =IF(condition, value_if_true, value_if_false) for conditional logic
  • Select a range by shift-clicking to apply formatting to multiple cells
  • =TODAY() and =NOW() return the current date and time
  • Formulas referencing other cells update automatically as you type
  • Press Ctrl+Z to undo the last action (browser back is not undone)

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