How to make correct date format when writing data to Excel

Question

Iam exporting a DataTable to an Excel-file using office interop. The problem is, that Excel does not recognize dates as such, but instead it displays numbers. In another cas

Answer 1

This worked for me:

sheet.Cells[currentRow, ++currentColumn] = "'" + theDate.ToString("MM/dd/yy");

Note the tick mark added before the date.