Microsoft.Office.Interop.Excel - *.csv file opening

Question

I create *.csv file, but when I open it using Microsoft.Office.Interop.Excel , it's formatting is wrong, because of ignoring the delimiter ; .

excelWorkbook = excelApp.Workbooks.Open(workbookPath, 0,
                    false,5,"","", false, Excel.XlPlatform.xlWindows, "", true,
                    false, 0, true, false, false);

Which parameter of Workbooks.Open should I change?

Thank you for your suggestions.

Answer 1

The delimiter argument, which is the 9th one. Change "" to ";" . For more info, check msdn

Answer 2

This is how it should be:

excelWorkbook = excelApp.Workbooks.Open(workbookPath, 0,
                false,5,"","", false, Excel.XlPlatform.xlWindows, ";", true,
                false, 0, true, false, false);

Answer 3

Interop Excel has a format to open CSV files.

excel_app.Workbooks.Open(
        txtFile.Text,               // Filename
        Type.Missing,
        Type.Missing,
        Excel.XlFileFormat.xlCSV,   // Format
        Type.Missing,
        Type.Missing,
        Type.Missing,
        Type.Missing,
        txtDelimiter.Text,          // Delimiter
        Type.Missing,
        Type.Missing,
        Type.Missing,
        Type.Missing,
        Type.Missing,
        Type.Missing);

Format and Delimiter combo should be working in all cases.

Source