Question

I need to write a date in cell using date type using Open XML.
Can you please tell me how can I do this?

Answer 1

I got the answer and sharing with you all…

Just add cell as we do..

 Cell cell =new Cell(){ cellReference=A1 }; //Or other necessary details
 cell.cellValue = new CellValue(DateTime.Now.ToOADate().ToString()); 

 cell.StyleIndex=5;

Here I have used

cell.StyleIndex=5;

which is By Default Style Index of date in Excel. So no need to add all the external styylesheets

Enjoy 🙂