OpenXML - Writing a date into Excel spreadsheet results in unreadable content

Question

I am using the following code to add a DateTime to a column in my spreadsheet:

var dt = DateTime.Now;
r.AppendChild(new Cell()
    {         


        

Answer 1

try dt.ToOADate().ToString().Replace (",", ".") instead of dt.ToOADate().ToString()

For some working code samples see http://www.codeproject.com/KB/office/ExcelOpenXMLSDK.aspx

EDIT:

please change your code to this:

dt.ToOADate().ToString(new CultureInfo("en-US"));