XL2000: How to Programmatically Subtract or Sum Two Ranges of Data (213337)

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Using One Worksheet

To subtract or add values in one column from or to another column, and have the results appear in a third column, follow these steps:

1. Start Excel 2000, and then create the following worksheet:

      A1:    1    B1:    11
      A2:    2    B2:    12
      A3:    3    B3:    13
      A4:    4    B4:    14
      A5:    5    B5:    15
      A6:    6    B6:    16
      A7:    7    B7:    17
      A8:    8    B8:    18
      A9:    9    B9:    19
      A10:  10    B10:   20
   					

2. Press ALT+F11 to start the Visual Basic Editor.
3. On the Insert menu, click Module.
4. In the module sheet, type the following code:

   Sub MyTotal()
       Dim CurCell As Object
       For Each CurCell In Range("C1:C10")
           CurCell.Value = CurCell.Offset(0, -2).Value _
               - CurCell.Offset(0, -1).Value
       Next
   End Sub
   					

5. Press ALT+F11 to return to Excel 2000.
6. Press ALT+F8 to open the Macro dialog box.
7. In the Macro name box, click MyTotal, and then click Run. The macro returns the following values:

      C1:    -10
      C2:    -10
      C3:    -10
      C4:    -10
      C5:    -10
      C6:    -10
      C7:    -10
      C8:    -10
      C9:    -10
      C10:   -10
   					

NOTE: You can use the same code to add the columns. To do so, change the minus sign to a plus sign in the CurCell.Value line, as follows:

+ CurCell.Offset(0, -1).Value
				

Using Two Workbooks

To subtract or add from different workbooks in Excel, follow these steps:

1. In Book1, create the following worksheet:

      A1:    1
      A2:    2
      A3:    3
      A4:    4
      A5:    5
      A6:    6
      A7:    7
      A8:    8
      A9:    9
      A10:  10
   					

2. Press CTRL+N to open a second workbook (Book2), and then create the following worksheet:

      A1:    11
      A2:    12
      A3:    13
      A4:    14
      A5:    15
      A6:    16
      A7:    17
      A8:    18
      A9:    19
      A10:   20
   					

3. Press ALT+F11 to start the Visual Basic Editor.
4. On the Insert menu, click Module.
5. In the module sheet, type or paste the following code:

   Sub TotalData()
       Dim File1 As Object, File2 As Object, CurCell As Object
   
       Set File1 = Workbooks("Book1").Sheets("Sheet1").Range("A1:A10")
   
       Set File2 = Workbooks("Book2").Sheets("Sheet1").Range("A1:A10")
   
       For Each CurCell In Range("A1:A10")
   
           CurCell.Value = File1.Cells(CurCell.Row, 1).Value - _
               File2.Cells(CurCell.Row, 1).Value
   
       Next
   End Sub
   					

6. Press ALT+F11 to return to Excel 2000.
7. Press ALT+F8 to open the Macro dialog box.
8. In the Macro name box, click TotalData, and then click Run. The macro returns the following values:

      A1:    -10
      A2:    -10
      A3:    -10
      A4:    -10
      A5:    -10
      A6:    -10
      A7:    -10
      A8:    -10
      A9:    -10
      A10:   -10
   					

NOTE: To add instead of subtract, change the minus sign to a plus sign in the CurCell.Value line, as follows:

CurCell.Value = File1.Cells(CurCell.Row, 1).Value +