Macro to split excel into separate workbooks

Jlee0730 

Try this (based on an example by Ron de Bruin):

Sub Copy_To_Workbooks()
    Dim My_Range As Range
    Dim FieldNum As Long
    Dim FileExtStr As String
    Dim FileFormatNum As Long
    Dim CalcMode As Long
    Dim ViewMode As Long
    Dim ws2 As Worksheet
    Dim MyPath As String
    Dim foldername As String
    Dim Lrow As Long
    Dim cell As Range
    Dim CCount As Long
    Dim WSNew As Worksheet
    Dim ErrNum As Long

    Set My_Range = ActiveSheet.UsedRange

    If ActiveWorkbook.ProtectStructure = True Or _
       My_Range.Parent.ProtectContents = True Then
        MsgBox "Sorry, not working when the workbook or worksheet is protected", _
               vbOKOnly, "Copy to new workbook"
        Exit Sub
    End If

    'This example filters on the 7th  column in the range
    FieldNum = 7

    'Turn off AutoFilter
    My_Range.Parent.AutoFilterMode = False

    FileExtStr = ".xlsx"
    FileFormatNum = xlOpenXMLWorkbook

    'Change ScreenUpdating, Calculation, EnableEvents, ....
    With Application
        CalcMode = .Calculation
        .Calculation = xlCalculationManual
        .ScreenUpdating = False
        .EnableEvents = False
    End With
    ViewMode = ActiveWindow.View
    ActiveWindow.View = xlNormalView
    ActiveSheet.DisplayPageBreaks = False

    My_Range.Sort Key1:=Cells(1, FieldNum), Header:=xlYes

    ' Add worksheet to copy/paste the unique list
    Set ws2 = Worksheets.Add(After:=Sheets(Sheets.Count))

    MyPath = ThisWorkbook.Path

    'Add a slash at the end if the user forget it
    If Right(MyPath, 1) <> "\" Then
        MyPath = MyPath & "\"
    End If

    With ws2
        'first we copy the Unique data from the filter field to ws2
        My_Range.Columns(FieldNum).AdvancedFilter _
            Action:=xlFilterCopy, _
            CopyToRange:=.Range("A3"), Unique:=True

        'loop through the unique list in ws2 and filter/copy to a new sheet
        Lrow = .Cells(Rows.Count, "A").End(xlUp).Row
        For Each cell In .Range("A4:A" & Lrow)

            'Filter the range
            My_Range.AutoFilter Field:=FieldNum, Criteria1:="=" & _
             Replace(Replace(Replace(cell.Value, "~", "~~"), "*", "~*"), "?", "~?")

            'Check if there are no more then 8192 areas(limit of areas)
            CCount = 0
            On Error Resume Next
            CCount = My_Range.Columns(1).SpecialCells(xlCellTypeVisible) _
                     .Areas(1).Cells.Count
            On Error GoTo 0
            If CCount = 0 Then
                MsgBox "There are more than 8192 areas for the value : " & cell.Value _
                     & vbNewLine & "It is not possible to copy the visible data." _
                     & vbNewLine & "Tip: Sort your data before you use this macro.", _
                       vbOKOnly, "Split in worksheets"
            Else
                'Add new workbook with one sheet
                Set WSNew = Workbooks.Add(xlWBATWorksheet).Worksheets(1)
                WSNew.Name = cell.Value

                'Copy/paste the visible data to the new workbook
                My_Range.SpecialCells(xlCellTypeVisible).Copy
                With WSNew.Range("A1")
                    .PasteSpecial Paste:=xlPasteColumnWidths
                    .PasteSpecial xlPasteValues
                    .PasteSpecial xlPasteFormats
                    Application.CutCopyMode = False
                    .Select
                End With

                'Save the file in the new folder and close it
                On Error Resume Next
                WSNew.Parent.SaveAs MyPath & cell.Value & FileExtStr, FileFormatNum
                WSNew.Parent.Close False
                On Error GoTo 0
            End If

            'Show all the data in the range
            My_Range.AutoFilter Field:=FieldNum

        Next cell
    End With

    'Turn off AutoFilter
    My_Range.Parent.AutoFilterMode = False

    'Restore ScreenUpdating, Calculation, EnableEvents, ....
    My_Range.Parent.Select
    ActiveWindow.View = ViewMode
    Application.DisplayAlerts = False
    ws2.Delete
    Application.DisplayAlerts = True
    With Application
        .ScreenUpdating = True
        .EnableEvents = True
        .Calculation = CalcMode
    End With
End Sub