TOOL

Google spreadsheet

Tips

Specify a cell of another sheet

Type = followed by the sheet name, an exclamation point, and the cell being copied. If the sheet name contain spaces, use quotes around it.

crystal
=Sheet1!A1
='Sheet two'!B4

Count number of filled cells

crystal
=COUNTA(B5:B200)

Conditional formatting based on another cell

In the dropdown for selecting the type of condition, select Custom formula (at the bottom) and use:

FormulaObjective
C1=1Column is auto incremented if applying to multiple columns (ex: implies D1=1 E1=1).
$C1=1Column is fixed to the provided formula.