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Formula System

OpenSheets includes a full-featured formula engine. All formulas begin with = followed by a function name or expression.

Functions Reference

Entering Formulas

Type = in any cell to start a formula. As you type, OpenSheets provides auto-complete suggestions for function names, helping you discover and insert functions quickly.

Formula Bar

Cell References

Reference Type Example Description
Single cell A1 References one cell
Range A1:B10 References a rectangular block of cells
Absolute $A$1 Stays fixed when copied
Mixed $A1, A$1 Partially fixed reference
Cross-sheet Sheet2!A1 References a cell on another sheet
Cross-sheet range Sheet2!A1:B10 References a range on another sheet

Operators

Operator Example Description
+ - * / =A1+B1 Arithmetic
^ =2^3 Exponentiation
& ="Hello "&"World" Text concatenation
= <> > < >= <= =A1>10 Comparison

Function Categories