Changing cell References by fixed value

[howard]

I have a series of formula copies from another workbook, but need all the references to be reduced by 10

for Eg for original formula which was copies is =SUM(INDEX(Sheet1!A1671:DG1671,0,104))

I need this automatically reduced by 10 for eg =SUM(INDEX(Sheet1!A1661:DG1661,0,104))

Is there a way in Excel where I can reduce a the values in the range by say 10

Your assistance will be most appreciated

 

[Fazza]

What if you just replace, CTRL-H. change all 1671 to 1661 ?

I guess there are lots of different ones to do? If so, can you give some more info - maybe some VBA would be good?

 

[howard]

Hi Faza

Thanks for the reply Here are some sample formula where the reference must be reduced by 10. The formulas are in col B

SUM(INDEX(Sheet1!A1674:CZ1674,0,104))
change to SUM(INDEX(Sheet1!A1664:CZ1664,0,104))

SUM(INDEX(Sheet1!$A$1531:$CZ$1531,0,104),SUM(INDEX(Sheet1!$A$1533:$CZ$1534,0,104),SUM(INDEX(Sheet1!$A$1537:$CZ$1537,0,104),SUM(INDEX(Sheet1!$A$1539:$CZ$1539,0,104),SUM(INDEX(Sheet1!$A$1541:$CZ$1541,0,104))))))

change to

SUM(INDEX(Sheet1!$A$1521:$CZ$1521,0,104),SUM(INDEX(Sheet1!$A$1523:$CZ$1524,0,104),SUM(INDEX(Sheet1!$A$1527:$CZ$1527,0,104),SUM(INDEX(Sheet1!$A$1529:$CZ$1529,0,104),SUM(INDEX(Sheet1!$A$1531:$CZ$1531,0,104))))))

Your assistance will be most appreciated

Regards

Howard

 

[Fazza]

Thanks. If I understand the pattern it helps.

Such as, every number after a $

or every number > 104

what do you think would be suitable?

 

[Fazza]

PS

are all the numbers to change in the range 1000 to 9999. That is, a four digit number?

 

[Fazza]

Also, approximately how many worksheets & formulas need to change?

 

[howard]

Hi Faza

The range is from B1:B300. The values that must change are after $

Regards

Howard

 

[Fazza]

Hi Howard, some quick & dirty code. Range B1:B300 has formulas, numbers after $ to reduce by 10. No error checking.

Important: please back up your file before starting.

From the worksheet's tab right click and choose view code. Copy & paste code from below into the big white window on the RHS of the VBE (Visual Basic Editor). Insert cursor into the pasted code. Hit F5 to execute the code. Then return to Excel & check if it worked correctly.

Sub test()
  Dim a, b
  Dim i As Long, j As Long, k As Long
  Dim g$
  With Range("B1:B300")
    .Replace What:="=", Replacement:="'="
    ReDim a(1 To .Rows.Count, 1 To .Columns.Count)
    a = .Value
    For i = LBound(a, 1) To UBound(a, 1)
      b = Split(a(i, 1), "$")
      For j = LBound(b) To UBound(b)
        If IsNumeric(Left$(b(j), 1)) Then
          g$ = vbNullString
          k = 1
          Do While IsNumeric(Mid$(b(j), k, 1))
            g$ = g$ & Mid$(b(j), k, 1)
            k = k + 1
          Loop
          b(j) = CLng(g$) - 10 & Mid$(b(j), k)
        End If
      Next j
      a(i, 1) = Join$(b, "$")
    Next i
    .Value = a
    .Replace What:="'=", Replacement:="="
  End With
End Sub

 

[howard]

Hi Fazza

Thanks for the help, much appreciated

 

[Fazza]

You're welcome, Howard. Just thinking, if you encounter this again another approach [without VBA] is to convert the formulas to text (such as replace the "=" by "zzz=") and then temporarily use adjacent columns & text functions - such as FIND, LEFT, RIGHT, LEN - to isolate components of the formula, change as required, and then put it back together again. Regards, F