I've done this before but I am completely blanking on what I am doing wrong with adding text or in this case a formula to a cell. The line I have and am getting an error on is
Workbooks("DSL Annual Rollup").Worksheets("DSL Annual Rollup").Cells(i, 3)="January!D"&i&"February!D"&i&"March!D"&i&"April!D"&i&"May!D"&i&"June!D"&i&"July!D"&i&"August!D"&i&"September!D"&i&"October!D"&i&"November!D"&i&"December!D"&i