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
ActiveWorkbook.Close
' Delete old CSV file
Kill oldfname
Windows(myfile).Activate
workfile = Dir()
Loop
Application.DisplayAlerts = True
Application.ScreenUpdating = True
End Sub
