Convert CSV into XLS

Hallaghan picture Hallaghan · Jan 24, 2011 · Viewed 26.5k times · Source

I'm working in a web application separated in blocks and I'm getting a CSV object from a work mate of mine which I must convert into XLS to be passed into an Excel Processor they built. This CSV object is delimited by the character ";".

What I'd like to know is how I can convert the CSV object into XLS programatically.

Answer

vc 74 picture vc 74 · Jan 24, 2011

It should be easy for you to convert the CSV object into an array of arrays of strings and then do like in the following example (you'll need to add a reference to Microsoft.Office.Interop.Excel):

using Excel = Microsoft.Office.Interop.Excel;

Excel.Application excel = new Excel.Application();
Excel.Workbook workBook = excel.Workbooks.Add();
Excel.Worksheet sheet = workBook.ActiveSheet;

var CsvContent = new string[][]
{
    new string[] {"FirstName", "UserName", "PostCode", "City"},
    new string[] {"John", "Smith", "4568", "London"},
    new string[] {"Brian", "May", "9999", "Acapulco"}
};

for (int i = 0; i < CsvContent.Length; i++)
{
    string[] CsvLine = CsvContent[i];
    for (int j = 0; j < CsvLine.Length; j++)
    {
        sheet.Cells[i + 1, j + 1] = CsvLine[j];
    }
}

workBook.SaveAs(@"C:\Temp\fromCsv.xls");
workBook.Close();