Save batch of .xls files as .xlsb


Well-known Member
Sep 8, 2014
Sub Convert_Csv_to_xlsb()
    Dim myfile As String
    Dim oldfname As String, newfname As String
    Dim workfile
    Dim folderName As String
    Application.DisplayAlerts = False
    Application.ScreenUpdating = False
'   Capture name of current file
    myfile = ActiveWorkbook.Name
'   Set folder name to work through
    folderName = "C:\Users\Desktop\2018-19\Data\Raw\"
'   Loop through all CSV filres in folder
    workfile = Dir(folderName & "*.CSV")
    Do While workfile <> ""
'       Open CSV file
        Workbooks.Open Filename:=folderName & workfile
'       Capture name of old CSV file
        oldfname = ActiveWorkbook.FullName
'       Convert to XLSX
        newfname = folderName & Left(ActiveWorkbook.Name, Len(ActiveWorkbook.Name) - 4) & ".xlsb"
        ActiveWorkbook.SaveAs Filename:=newfname, FileFormat:=xlExcel12, CreateBackup:=False
'       Delete old CSV file
        Kill oldfname
        workfile = Dir()
    Application.DisplayAlerts = True
    Application.ScreenUpdating = True

End Sub

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