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in Technique[技术] by (71.8m points)

excel - Open CSV file via VBA (performance)

Obviously, this question has been asked many times. The normal procedure:

Workbooks.Open (ActiveWorkbook.Path & "Test.csv")

won't parse the CSV correctly (having many rows in one cell)

Thanks to Lernkurve, I can use his function to get it right: Opening semicolon delimited CSV file

Sub ImportCSVFile(filepath As String)
Dim line As String
Dim arrayOfElements
Dim linenumber As Integer
Dim elementnumber As Integer
Dim element As Variant

linenumber = 0
elementnumber = 0

Open filepath For Input As #1 ' Open file for input
    Do While Not EOF(1) ' Loop until end of file
        linenumber = linenumber + 1
        Line Input #1, line
        arrayOfElements = Split(line, ";")

        elementnumber = 0
        For Each element In arrayOfElements
            elementnumber = elementnumber + 1
            Cells(linenumber, elementnumber).Value = element
        Next
    Loop
Close #1 ' Close file.
End Sub

This however is not fast (I have files with thousands of columns) and my question is:

Is there any native way to open CSV files in Excel with right parsing?

See Question&Answers more detail:os

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Workbooks.Open does work too.

Workbooks.Open ActiveWorkbook.Path & "Temp.csv", Local:=True

this works/is needed because i use Excel in germany and excel does use "," to separate .csv by default because i use an english installation of windows. even if you use the code below excel forces the "," separator.

Workbooks.Open ActiveWorkbook.Path & "Test.csv", , , 6, , , , , ";"

and Workbooks.Open ActiveWorkbook.Path & "Temp.csv", , , 4 +variants of this do not work(!)

why do they even have the delimiter parameter if it is blocked by the Local parameter ?! this makes no sense at all. but now it works.


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