Is it possible to arrange a conditional formatting custom formula based on information input into a different spreadsheet?
For example, I have 1 in A1, 2 in A2 and 3 in A3 on a spreadsheet saved as 'Numbers' and in a worksheet titled 'List' and in a spreadsheet saved as 'Input' I enter 1 in A1 of a worksheet titled 'Entry'. When I enter 1 in the 'Input' spreadsheet I would want cell A1 in the 'Numbers' spreadsheet to become highlighted.
I've had a play around with IMPORTRANGE AND IF formulae but to no avail