daves_combine_sheets.vb

Option Explicit
Public Sub CombineDataFromAllSheets()

    Dim wksSrc As Worksheet, wksDst As Worksheet
    Dim rngSrc As Range, rngDst As Range
    Dim lngLastCol As Long, lngSrcLastRow As Long, lngDstLastRow As Long
    
    'Notes: "Src" is short for "Source", "Dst" is short for "Destination"
    
    'Set references up-front
    Set wksDst = ThisWorkbook.Worksheets("Import")
    lngDstLastRow = LastOccupiedRowNum(wksDst) '<~ defined below (and in Toolbelt)!
    lngLastCol = LastOccupiedColNum(wksDst) '<~ defined below (and in Toolbelt)!
    
    'Set the initial destination range
    Set rngDst = wksDst.Cells(lngDstLastRow + 1, 1)
    
    'Loop through all sheets
    For Each wksSrc In ThisWorkbook.Worksheets
    
        'Make sure we skip the "Import" destination sheet!
        If wksSrc.Name <> "Import" Then
            
            'Identify the last occupied row on this sheet
            lngSrcLastRow = LastOccupiedRowNum(wksSrc)
            
            'Store the source data then copy it to the destination range
            With wksSrc
                Set rngSrc = .Range(.Cells(2, 1), .Cells(lngSrcLastRow, lngLastCol))
                rngSrc.Copy
                rngDst.PasteSpecial Paste:=xlPasteValues '<~ change from original
                rngDst.PasteSpecial Paste:=xlPasteFormats '<~ change from original
            End With
            
            'Redefine the destination range now that new data has been added
            lngDstLastRow = LastOccupiedRowNum(wksDst)
            Set rngDst = wksDst.Cells(lngDstLastRow + 1, 1)
            
        End If
    
    Next wksSrc

End Sub

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'INPUT       : Sheet, the worksheet we'll search to find the last row
'OUTPUT      : Long, the last occupied row
'SPECIAL CASE: if Sheet is empty, return 1
Public Function LastOccupiedRowNum(Sheet As Worksheet) As Long
    Dim lng As Long
    If Application.WorksheetFunction.CountA(Sheet.Cells) <> 0 Then
        With Sheet
            lng = .Cells.Find(What:="*", _
                              After:=.Range("A1"), _
                              Lookat:=xlPart, _
                              LookIn:=xlFormulas, _
                              SearchOrder:=xlByRows, _
                              SearchDirection:=xlPrevious, _
                              MatchCase:=False).Row
        End With
    Else
        lng = 1
    End If
    LastOccupiedRowNum = lng
End Function

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'INPUT       : Sheet, the worksheet we'll search to find the last column
'OUTPUT      : Long, the last occupied column
'SPECIAL CASE: if Sheet is empty, return 1
Public Function LastOccupiedColNum(Sheet As Worksheet) As Long
    Dim lng As Long
    If Application.WorksheetFunction.CountA(Sheet.Cells) <> 0 Then
        With Sheet
            lng = .Cells.Find(What:="*", _
                              After:=.Range("A1"), _
                              Lookat:=xlPart, _
                              LookIn:=xlFormulas, _
                              SearchOrder:=xlByColumns, _
                              SearchDirection:=xlPrevious, _
                              MatchCase:=False).Column
        End With
    Else
        lng = 1
    End If
    LastOccupiedColNum = lng
End Function