View Full Version : Solved: VBA code to merge Worksheets Of Up To 1 Million Records In Ex. 2007

03-25-2008, 08:59 AM
This is a nice piece of VBA code which adds separate worksheets onto the bottom of each other as long as they have the same field structure. I have tested this and it works fine in Excel 2003. However, when you have large worksheets ie. over 65536 records then the files are naturally split into different sheets. With Excel 2007 having a record capacity of 1 million records I have been trying to adapt the VBA to allow the addition of up to 1 million records to a worksheet. Obviously I have tried changing the number of records in the code but this causes the VBA to crash as more adaptations are needed which I can't figure out as I'm very new to VBA. Can anyone help??

Sub CopyFromWorksheets()
Dim wrk As Workbook 'Workbook object - Always good to work with object variables
Dim sht As Worksheet 'Object for handling worksheets in loop
Dim trg As Worksheet 'Master Worksheet
Dim rng As Range 'Range object
Dim colCount As Integer 'Column count in tables in the worksheets

Set wrk = ActiveWorkbook 'Working in active workbook

For Each sht In wrk.Worksheets
If sht.Name = "Master" Then
MsgBox "There is a worksheet called as 'Master'." & vbCrLf & _
"Please remove or rename this worksheet since 'Master' would be" & _
"the name of the result worksheet of this process.", vbOKOnly + vbExclamation, "Error"
Exit Sub
End If
Next sht

'We don't want screen updating
Application.ScreenUpdating = False

'Add new worksheet as the last worksheet
Set trg = wrk.Worksheets.Add(After:=wrk.Worksheets(wrk.Worksheets.Count))
'Rename the new worksheet
trg.Name = "Master"
'Get column headers from the first worksheet
'Column count first
Set sht = wrk.Worksheets(1)
colCount = sht.Cells(1, 255).End(xlToLeft).Column
'Now retrieve headers, no copy&paste needed
With trg.Cells(1, 1).Resize(1, colCount)
.Value = sht.Cells(1, 1).Resize(1, colCount).Value
'Set font as bold
.Font.Bold = True
End With

'We can start loop
For Each sht In wrk.Worksheets
'If worksheet in loop is the last one, stop execution (it is Master worksheet)
If sht.Index = wrk.Worksheets.Count Then
Exit For
End If
'Data range in worksheet - starts from second row as first rows are the header rows in all worksheets
Set rng = sht.Range(sht.Cells(2, 1), sht.Cells(65536, 1).End(xlUp).Resize(, colCount))
'Put data into the Master worksheet
trg.Cells(65536, 1).End(xlUp).Offset(1).Resize(rng.Rows.Count, rng.Columns.Count).Value = rng.Value
Next sht
'Fit the columns in Master worksheet

'Screen updating should be activated
Application.ScreenUpdating = True
End Sub

Also found at this link ww... vbaexpress.com/kb/getarticle.php?kb_id=773

03-25-2008, 11:06 AM
Try changing
255 to Columns.Count
65536 to Rows.Count

Shred Dude
05-05-2008, 02:49 PM
Have you tried the new CountLarge Property in 2007, when referring to Row counts greater than 65536?

04-08-2011, 06:54 AM
This code works really great it solved my problems...
"you know an except is coming",
it does not bring any font or interior cell colors when it merges the worksheets.

How can the font and interior colors be added to this merge? I am out of ideas... :banghead: