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c# - Excel date format using EPPlus

I'm having trouble with format my cells to Date.

FileInfo info = new FileInfo(path);
using (ExcelPackage package = new ExcelPackage(info))
{
      ExcelWorksheet ws = package.Workbook.Worksheets.Add(sheetName);
      ws.Cells[3, 1].Style.Numberformat.Format = "yyyy-mm-dd";
      ws.Cells["A3"].Formula = "=DATE(2014,10,5)";
}

Output from this in Excel: 41 917,00

Why is this not working?

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by (71.8m points)

I agree with Yosoyke. You're probably targeting the wrong cells. You can try:

ws.Cells["A3"].Style.Numberformat.Format = "yyyy-mm-dd";
ws.Cells["A3"].Formula = "=DATE(2014,10,5)";

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