Documentation/How Tos/Calc: SHEET function

SHEET

Returns the sheet number, given a reference.

Syntax:

SHEET(reference)

returns the sheet number of reference, where reference is a reference to a cell.

If reference is omitted, the sheet number of the current sheet (containing the formula) is returned.

Example:

SHEET(Sheet2.C4)

returns 2, if you have 3 sheets - Sheet1, Sheet2, Sheet3 - in that order, because Sheet2 is the second sheet.

SHEET()

returns the current sheet number (of the sheet containing the formula).