by Allen Wyatt
(last updated October 13, 2018)
Adam has two formulas in cells A1 and A2. In A1 he has the formula =B150 and in cell A2 he has the formula =B149. He tried to copy this sequence downward, using the fill handle, but the sequence wouldn't work right. (For instance, after filling cell A3 contained =B152 when it should have contained =B148.) Adam wonders if there is a way to have such a fill work properly.
Adam is right; filling will not work in this instance. The reason is because the fill feature in Excel works with values, not with formulas. So, there are a couple of ways you can approach this problem.
The first is to place text values of some sort into cells A1 and A2. For instance, you could place the text "x=B150" (without the quotes) into cell A1 and "x=B149" (again, without the quotes) into cell A2. Excel rightfully parses these cells as text. You can then select A1:A2 and drag downward as far as you need. Excel follows the pattern in the text (remember, it isn't a formula) and decreases the numbers. (Don't drag past cell A150. When you hit A151 the text will be "x=B0" and then Excel starts counting upwards again in cell A152.)
Now, select all the cells that you just filled and use Find and Replace to search for the preface character (x) and replace it with nothing. You end up with the equal sign in the leading position, and Excel now parses the cells as formulas, just as you want.
Another approach is to use a more complex formula to accommodate the need of decreasing references. In this instance you can do it using the INDIRECT function, in this manner:
Paste this into cell A1 and then copy it down through cell A150. It works because you are subtracting the current row number from 151, adding a "B" to the front of it, and then using INDIRECT to reference the value in that calculated cell address. Obviously, if you want to reference a different cell (other than starting with B150), you'll need to adjust the formula so that the proper cell address is calculated.
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