Convert .CSV to .XLSX using command line

Question

I\'m looking for a way to batch-convert a series of .csv files to .xlsx using the command line.

I have tried a bunch of different VBScripts

Answer 1

only pre-requisite is that the ".csv" must be lower case in the filename:

Dim file, WB

With CreateObject("Excel.Application")
    On Error Resume Next
    For Each file In WScript.Arguments
        Set WB = .Workbooks.Open(file)
        WB.SaveAs Replace(WB.FullName, ".csv", ".xlsx"), 51
        WB.Close False
    Next    
    .Quit
End With

WScript.Echo "Done!"