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vba - How to gather data from all rows from differenet Excel workbooks and sort them?

I have multiple workbooks which share same structure.

For example:

Book1.xls

      A     B
1   Item1 16:05
2   Item2 09:05
....

Book2.xls

      A     B
1   Item3 07:35
2   Item4 22:15
....

These workbooks are updated every day and can have any amount of rows with data.

I need to retrieve all rows from all the workbooks and sort them by time.

For example:

AllData.xls

      A     B
1   Item3 07:35
2   Item2 09:05
3   Item1 16:05
4   Item4 22:15
....
See Question&Answers more detail:os

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by (71.8m points)

From Workbooks Sort

Adjust the values in the constants section to fit your needs.

The Code

'*******************************************************************************
' Purpose:    Copies a range from all workbooks in a folder to this workbook
'             and sorts the resulting range by a specified column.
'*******************************************************************************
Sub FromWorkbooksSort()

    ' Source File Folder Path
    Const cStrFolder As String = _
        "C:"
    Const cStrExt As String = "*.xls*"       ' Source File Pattern
    Const cVntSName As Variant = 1           ' Source Worksheet Name/Index
    Const cIntSFirstRow As Integer = 1       ' Source First Row Number
    Const cVntSFirstColumn As Variant = "A"  ' Source First Column Letter/Number

    Const cIntColumns As Integer = 2         ' Source/Target Number of Columns

    ' Target Headers List
    Const cStrHeaders As String = "Item,Time"
    Const cVntTName As Variant = "Sheet1"    ' Target Worksheet Name/Index
    Const cIntTFirstRow As Integer = 1       ' Target First Row Number
    Const cVntTFirstColumn As Variant = "A"  ' Target First Column Letter/Number
    Const cIntTSortColumn As Integer = 2     ' Target Sort Column

    Dim objSWorkbook As Workbook    ' Source Workbook
    Dim strSFileName As String      ' Source File Name
    Dim lngSLastRow As Long         ' Source Last Row

    Dim objTWorksheet As Worksheet  ' Target Worksheet
    Dim vntTHeaders As Variant      ' Target Headers Array
    Dim lngTLastRow As Long         ' Target Last Row
    Dim i As Integer                ' Target Headers Row Counter

    ' Speed up.
    With Application
      .ScreenUpdating = False
      .Calculation = xlCalculationManual
      .DisplayAlerts = False
    End With

    ' Minor Error Handling
    On Error GoTo ErrorHandler

    ' Clear and write headers to Target Worksheet.
    Set objTWorksheet = ThisWorkbook.Worksheets(cVntTName)
    objTWorksheet.Cells.Clear
    vntTHeaders = Split(cStrHeaders, ",")
    For i = 0 To UBound(vntTHeaders)
        objTWorksheet.Cells(cIntTFirstRow, cVntTFirstColumn).Offset(0, i) _
                = vntTHeaders(i)
    Next

    ' Loop through all workbooks in folder.
    strSFileName = Dir(cStrFolder & "" & cStrExt)
    Do While Len(strSFileName) > 0

        Set objSWorkbook = Workbooks.Open(cStrFolder & "" & strSFileName)

        With objSWorkbook.Worksheets(cVntSName)
            ' Calculate current Source Last Row in Source First Column.
            lngSLastRow = .Cells(.Rows.Count, cVntSFirstColumn).End(xlUp).Row
            ' Check if Source First Column is empty.
            If lngSLastRow = 1 And IsEmpty(.Cells(1, 1)) Then
              Else
                ' Calculate current Target Last Row in Target First Column.
                With objTWorksheet.Cells(.Rows.Count, cVntTFirstColumn)
                    lngTLastRow = .End(xlUp).Row
                End With
                ' Copy from Source Worksheet to Target Worksheet.
                .Cells(cIntSFirstRow, cVntSFirstColumn) _
                        .Resize(lngSLastRow, cIntColumns).Copy _
                        objTWorksheet.Cells(lngTLastRow + 1, cVntTFirstColumn)
            End If
        End With

        objSWorkbook.Close False ' Close current workbook without saving.

        ' Next file (workbook).
        strSFileName = Dir

    Loop

    With objTWorksheet
        ' Calculate current Target Last Row in Target First Column.
        lngTLastRow = .Cells(.Rows.Count, cVntTFirstColumn).End(xlUp).Row
        ' Sort Target Range.
        With .Cells(cIntTFirstRow, cVntTFirstColumn).Resize(lngTLastRow _
                - cIntTFirstRow + 1, cIntColumns)
            .Sort Key1:=.Parent.Cells(cIntTFirstRow, .Parent.Cells(1, _
                    cVntTFirstColumn).Column + cIntTSortColumn - 1), _
                    Header:=xlYes
        End With
    End With

ProcedureExit:

    ' Clean up.
    Set objSWorkbook = Nothing
    Set objTWorksheet = Nothing

    ' Speed down.
    With Application
      .DisplayAlerts = True
      .Calculation = xlCalculationAutomatic
      .ScreenUpdating = True
    End With

Exit Sub

ErrorHandler:
    MsgBox "Error: " & Err.Number & vbCr & Err.Description
    On Error GoTo 0
    GoTo ProcedureExit

End Sub
'*******************************************************************************

Remarks

For a larger amount of rows, this code could be faster if entire rows were to be copied by implementing a Union Range.


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