It's possible to achieve this with the built-in COUNT() or COUNTA() function,
but that can be a big task if the workbook contains many worksheets,or if you frequently add new worksheets to the workbook.
To count a range from several worksheets you can use the COUNTA-function like this:
The formula above will count all non-blank cells in the range A1:A100 in the worksheets Sheet1 to Sheet10.
With the custom function below it's easy to count cells in a range from all the worksheets in a workbook:
Function CountAllWorksheets(InputRange As Range, InclAWS As Boolean) As Double ' counts the content of InputRange in all worksheets in the workbook Dim ws As Worksheet, TempCount As Long Application.Volatile True ' calculates every time a cell changes TempCount = 0 For Each ws In ActiveWorkbook.Worksheets If InclAWS Then ' include the active worksheet TempCount = TempCount + _ Application.WorksheetFunction.Count(ws.Range(InputRange.Address)) Else ' exclude the active worksheet If ws.Name <> ActiveSheet.Name Then ' not the active worksheet TempCount = TempCount + _ Application.WorksheetFunction.Count(ws.Range(InputRange.Address)) End If End If Next ws Set ws = Nothing CountAllWorksheets = TempCount End Function
This function is used in the same way as built-in worksheetfunctions.
In Excel 5/95 the variable InputRange must be defined as Variant instead of Range.
This function can easily be adapted for use with other worksheetfunctions that you wish
to use on all the worksheets in a workbook.
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