What is used to identify an absolute cell in a spreadsheet?

The dollar sign is used to change the reference style of the cell. There are 3 styles: Relative, Absolute and Mixed A1 is Relative $A$1 is Absolute A$1 and $A1 are both Mixed So a true absolute reference has two dollars in it, one before the column reference and one before the row reference. The dollar sign locks the part of the address it precedes In A$1 the row is locked but the column isn't In $A1 the column is locked but the row isn't In $A$1 the row is locked and the column is locked, so it is an absolute reference.

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