Autofill with a dynamic range
I'm not a very experienced VBA programmer, I know the very basics. Right now I'm constructing a program to automate some work, using record and then cleaning. It has worked well up until a calculation that takes too long for me. Its a simple nested IF statement ActiveCell.FormulaR1C1 = _ "=IF(RC[-16]="""",""MISSING"",IF(RC[-14]="""",""MISSING"",RC[-14]-RC[-16]))" We deal with data that can range from being only 10 rows up to a couple hundred thousand. My "solution" that I'm not happy with so far has limited the autofill to range A1:A35000 - which still takes excel a bit to process. This was