I hope anyone can help, I would like to create a spreadsheet that uses colours to indicate if something is in date, is due or overdue.
For instance, if I see a client on one day and don't need to see them for 4, 6 or 12 weeks how can I display this using red amber green automatically?
I am ok with basic formula like =sum(c2+84) but much more then this I struggle and cant find out how to do this, I have been trying to do this for weeks messing about with conditional formatting but don't understand what the $ means in excel.
I have attached your sample sheet with the conditional formatting set up, I think it does what you are after. You can only conditional format on the value in the cell you are working on, not refer to other cells. The $ symbol is used to make a cell reference "Absolute" ie you can copy the reference to location and it will still point to the same cell reference as apposed to being relative where the cell reference will change when you copy it.
Enter a value in cell A1, type =A1 in cell B1 then drag B1 to B2 and the formula will be =A2. Put a $ in =A$1 and drag it down and the formula will be A1 because you made the row reference (1) absolute.