Auto Update worksheet references as new worksheets are added

R

Rick

I have a workbook where I add a new worksheet each week. Each sheet contains
cells with formulas that reference the worksheet from the previous week.
When I add a new worksheet, I copy the formulas from the previous week, but
it continues to reference the week prior to that. I must manually update
each reference, and it's getting old. Any suggestions?
 
G

Gord Dibben

If you're willing to use a User Defined Function.......

Function PrevSheet(rg As Range)
n = Application.Caller.Parent.Index
If n = 1 Then
PrevSheet = CVErr(xlErrRef)
ElseIf TypeName(Sheets(n - 1)) = "Chart" Then
PrevSheet = CVErr(xlErrNA)
Else
PrevSheet = Sheets(n - 1).Range(rg.Address).Value
End If
End Function

Example of use......................

Say you have 12 sheets, sheet1 through sheet12...........sheet names don't
matter.

In sheet1 you have a formula in A10 =SUM(A1:A9)

Select second sheet and SHIFT + Click last sheet

In active sheet A10 enter =SUM(PrevSheet(A10),A1:A9)

Ungroup the sheets.

Each A10 will have the sum of the previous sheet's A10 plus the sum of the
current sheet's A1:A9


Gord Dibben MS Excel MVP
 

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