Automatic

Subtype of Calculation Mode

Corresponds to the usual "automatic calculation" Excel mode.
In this mode, Excel will immediatelly carry out those calculations needed to synchronise all cells among themselves.
Only those cells whose input has changed are actually recalculated.
This latest property makes this setting actually more efficient than Manual when one only changes the input data in mature, fully developed spreadsheets.
It is recommended to avoid this mode before opening a spreadsheet of unknown origin.