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I found some code which works perfectly to separate a file based on a column (line 31) into separate tabs within a worksheet.

I just need it to separate the files based on a column into a separate workbook, and also prompt to add a suffix to identify each file.

Sub Copy_To_Worksheets()
'Note: This macro use the function LastRow
Dim My_Range As Range
Dim FieldNum As Long
Dim CalcMode As Long
Dim ViewMode As Long
Dim ws2 As Worksheet
Dim Lrow As Long
Dim cell As Range
Dim CCount As Long
Dim WSNew As Worksheet
Dim ErrNum As Long

'Set filter range on ActiveSheet: A1 is the top left cell of your filter range
'and the header of the first column, D is the last column in the filter range.
'You can also add the sheet name to the code like this :
'Worksheets("Sheet1").Range("A1:D" & LastRow(Worksheets("Sheet1")))
'No need that the sheet is active then when you run the macro when you use this.
Set My_Range = Range("A1:O2000") '  & LastRow(ActiveSheet))

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 worksheet"
    Exit Sub
End If

'This example filters on the first column in the range(change the field if needed)
'In this case the range starts in A so Field:=1 is column A, 2 = column B, ......
FieldNum = 6 ' I changed this to 3 for column C

'Turn off AutoFilter
My_Range.Parent.AutoFilterMode = False

'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

'Add a worksheet to copy the a unique list and add the CriteriaRange
Set ws2 = Worksheets.Add

With ws2
    'first we copy the Unique data from the filter field to ws2
    My_Range.Columns(FieldNum).AdvancedFilter _
            Action:=xlFilterCopy, _
            CopyToRange:=.Range("A1"), 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("A2: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) _
        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"
            'Add a new worksheet
            Set WSNew = Worksheets.Add(After:=Sheets(Sheets.Count))
            On Error Resume Next
            WSNew.Name = cell.Value
            If Err.Number > 0 Then
                ErrNum = ErrNum + 1
                WSNew.Name = "Error_" & Format(ErrNum, "0000")
            End If
            On Error GoTo 0

            'Copy the visible data to the new worksheet
            With WSNew.Range("A1")
                ' Paste:=8 will copy the columnwidth in Excel 2000 and higher
                ' Remove this line if you use Excel 97
                .PasteSpecial Paste:=8
                .PasteSpecial xlPasteValues
                .PasteSpecial xlPasteFormats
                Application.CutCopyMode = False
            End With
        End If

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

    Next cell

    'Delete the ws2 sheet
    On Error Resume Next
    Application.DisplayAlerts = False
    Application.DisplayAlerts = True
    On Error GoTo 0

End With

'Turn off AutoFilter
My_Range.Parent.AutoFilterMode = False

If ErrNum > 0 Then
    MsgBox "Rename every WorkSheet name that start with ""Error_"" manually" _
         & vbNewLine & "There are characters in the name that are not allowed" _
         & vbNewLine & "in a sheet name or the worksheet already exist."
End If

'Restore ScreenUpdating, Calculation, EnableEvents, ....
ActiveWindow.View = ViewMode
With Application
    .ScreenUpdating = True
    .EnableEvents = True
    .Calculation = CalcMode
End With

MsgBox ("Copy Complete - - Remember to save your work.")

End Sub

Any ideas on how to modify this?

share|improve this question
don't have one on me right now, but the one you already have, should be easy to modify - why don't you post it right away? – Jook Nov 13 '12 at 19:14

Here's a macro I did a few months ago at work. Maybe it can be of help. If not, you could always look at how I create workbooks in the CopySheet() Sub and adapt your current macro.

User action: The macro prompts you for the column number (C=3) to divide by, and which row to start at (typically the first row below headers). This macro does not prompt for a suffix - instead it automatically name workbooks with the column value and saves them in a \Split\ subfolder.

Requirement: This requires your table to be sorted by your primary column.

Context: I made it primarily to split large PivotTables (first converted to values with another macro) on the first row label in layout mode. Since those tables have many blank cells which are just hidden duplicates, it doesn't rely on filters and instead goes from top to bottom - hence the sorted requirement.

Method: Whenever a new value is encountered in the specified column, it copies the entire original worksheet to a new book each time, then deletes all rows before and after that current section (variables iFirstRow, iStartRow, iStopRow, iTotalRows are used to keep track of those chunks). This keeps any formatting, page setups, formulas, etc. you may have in your original book.

Public Sub SplitToFiles()

' MACRO SplitToFiles
' Last update: 2012-03-05
' Description
' Loops through a specified column, and split each distinct values into a separate file by making a copy and deleting rows below and above
' Note: Values in the column should be unique or sorted.
' The following cells are ignored when delimiting sections:
' - blank cells, or containing spaces only
' - same value repeated
' - cells containing "total"
' Files are saved in a "Split" subfolder from the location of the source workbook, and named after the section name.

Dim osh As Worksheet ' Original sheet
Dim iRow As Long ' Cursors
Dim iCol As Long
Dim iFirstRow As Long ' Constant
Dim iTotalRows As Long ' Constant
Dim iStartRow As Long ' Section delimiters
Dim iStopRow As Long
Dim sSectionName As String ' Section name (and filename)
Dim rCell As Range ' current cell
Dim owb As Workbook ' Original workbook
Dim sFilePath As String ' Constant
Dim iCount As Integer ' # of documents created

iCol = Application.InputBox("Enter the column number used for splitting", "Select column", 2, , , , , 1)
iRow = Application.InputBox("Enter the starting row number (to skip header)", "Select row", 5, , , , , 1)
iFirstRow = iRow

Set osh = Application.ActiveSheet
Set owb = Application.ActiveWorkbook
iTotalRows = osh.UsedRange.Rows.Count
sFilePath = Application.ActiveWorkbook.Path

If Dir(sFilePath + "\Split", vbDirectory) = "" Then
    MkDir sFilePath + "\Split"
End If

'Turn Off Screen Updating  Events
Application.EnableEvents = False
Application.ScreenUpdating = False

    ' Get cell at cursor
    Set rCell = osh.Cells(iRow, iCol)
    sCell = Replace(rCell.Text, " ", "")

    If sCell = "" Or (rCell.Text = sSectionName And iStartRow <> 0) Or InStr(1, rCell.Text, "total", vbTextCompare) <> 0 Then
        ' Skip condition met
        ' Found new section
        If iStartRow = 0 Then
            ' StartRow delimiter not set, meaning beginning a new section
            sSectionName = rCell.Text
            iStartRow = iRow
            ' StartRow delimiter set, meaning we reached the end of a section
            iStopRow = iRow - 1

            ' Pass variables to a separate sub to create and save the new worksheet
            CopySheet osh, iFirstRow, iStartRow, iStopRow, iTotalRows, sFilePath, sSectionName, owb.fileFormat
            iCount = iCount + 1

            ' Reset section delimiters
            iStartRow = 0
            iStopRow = 0

            ' Ready to continue loop
            iRow = iRow - 1
        End If
    End If

    ' Continue until last row is reached
    If iRow < iTotalRows Then
            iRow = iRow + 1
        ' Finished. Save the last section
        iStopRow = iRow
        CopySheet osh, iFirstRow, iStartRow, iStopRow, iTotalRows, sFilePath, sSectionName, owb.fileFormat
        iCount = iCount + 1

        ' Exit
        Exit Do
    End If

'Turn On Screen Updating  Events
Application.ScreenUpdating = True
Application.EnableEvents = True

MsgBox Str(iCount) + " documents saved in " + sFilePath

End Sub

Public Sub DeleteRows(targetSheet As Worksheet, RowFrom As Long, RowTo As Long)

Dim rngRange As Range
Set rngRange = Range(targetSheet.Cells(RowFrom, 1), targetSheet.Cells(RowTo, 1)).EntireRow

End Sub

Public Sub CopySheet(osh As Worksheet, iFirstRow As Long, iStartRow As Long, iStopRow As Long, iTotalRows As Long, sFilePath As String, sSectionName As String, fileFormat As XlFileFormat)
     Dim ash As Worksheet ' Copied sheet
     Dim awb As Workbook ' New workbook

     ' Copy book
     Set ash = Application.ActiveSheet

     ' Delete Rows after section
     If iTotalRows > iStopRow Then
         DeleteRows ash, iStopRow + 1, iTotalRows
     End If

     ' Delete Rows before section
     If iStartRow > iFirstRow Then
         DeleteRows ash, iFirstRow, iStartRow - 1
     End If

     ' Select left-topmost cell
     ash.Cells(1, 1).Select

     ' Clean up a few characters to prevent invalid filename
     sSectionName = Replace(sSectionName, "/", " ")
     sSectionName = Replace(sSectionName, "\", " ")
     sSectionName = Replace(sSectionName, ":", " ")
     sSectionName = Replace(sSectionName, "=", " ")
     sSectionName = Replace(sSectionName, "*", " ")
     sSectionName = Replace(sSectionName, ".", " ")
     sSectionName = Replace(sSectionName, "?", " ")

     ' Save in same format as original workbook
     ash.SaveAs sFilePath + "\Split\" + sSectionName, fileFormat

     ' Close
     Set awb = ash.Parent
     awb.Close SaveChanges:=False
End Sub
share|improve this answer
Thank you for responding. I tried the formula, and I keep getting an error message stating "400". Is there another part that I should be updating to this macro as well? For example, should I update the file path information? – IsraelT Nov 14 '12 at 22:52
@IsraelT Hmm.. not sure it works here. There's nothing to update. Make sure you put the macro in a module, not in the worksheet, and that your workbook is saved somewhere you have write access to.If it still doesn't work you'll have to put a breakpoint and press F8 to go from line to line to figure out which one causes the error - or try another macro. – mtone Nov 15 '12 at 0:27

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