var workbook = new XLWorkbook();
var ws = workbook.Worksheets.Add("Data Types");

var co = 2;
var ro = 1;

ws.Cell(++ro, co).Value = "Plain Text:";
ws.Cell(ro, co + 1).Value = "Hello World.";

ws.Cell(++ro, co).Value = "Plain Date:";
ws.Cell(ro, co + 1).Value = new DateTime(2010, 9, 2);

ws.Cell(++ro, co).Value = "Plain DateTime:";
ws.Cell(ro, co + 1).Value = new DateTime(2010, 9, 2, 13, 45, 22);

ws.Cell(++ro, co).Value = "Plain Boolean:";
ws.Cell(ro, co + 1).Value = true;

ws.Cell(++ro, co).Value = "Plain Number:";
ws.Cell(ro, co + 1).Value = 123.45;

ws.Cell(++ro, co).Value = "TimeSpan:";
ws.Cell(ro, co + 1).Value = new TimeSpan(33, 45, 22);

ro++;

ws.Cell(++ro, co).Value = "Explicit Text:";
ws.Cell(ro, co + 1).Value = "'Hello World.";

ws.Cell(++ro, co).Value = "Date as Text:";
ws.Cell(ro, co + 1).Value = "'" + new DateTime(2010, 9, 2).ToString();

ws.Cell(++ro, co).Value = "DateTime as Text:";
ws.Cell(ro, co + 1).Value = "'" + new DateTime(2010, 9, 2, 13, 45, 22).ToString();

ws.Cell(++ro, co).Value = "Boolean as Text:";
ws.Cell(ro, co + 1).Value = "'" + true.ToString();

ws.Cell(++ro, co).Value = "Number as Text:";
ws.Cell(ro, co + 1).Value = "'123.45";

ws.Cell(++ro, co).Value = "TimeSpan as Text:";
ws.Cell(ro, co + 1).Value = "'" + new TimeSpan(33, 45, 22).ToString();

ro++;

ws.Cell(++ro, co).Value = "Changing Data Types:";

ro++;

ws.Cell(++ro, co).Value = "Date to Text:";
ws.Cell(ro, co + 1).Value = new DateTime(2010, 9, 2);
ws.Cell(ro, co + 1).DataType = XLDataType.Text;

ws.Cell(++ro, co).Value = "DateTime to Text:";
ws.Cell(ro, co + 1).Value = new DateTime(2010, 9, 2, 13, 45, 22);
ws.Cell(ro, co + 1).DataType = XLDataType.Text;

ws.Cell(++ro, co).Value = "Boolean to Text:";
ws.Cell(ro, co + 1).Value = true;
ws.Cell(ro, co + 1).DataType = XLDataType.Text;

ws.Cell(++ro, co).Value = "Number to Text:";
ws.Cell(ro, co + 1).Value = 123.45;
ws.Cell(ro, co + 1).DataType = XLDataType.Text;

ws.Cell(++ro, co).Value = "TimeSpan to Text:";
ws.Cell(ro, co + 1).Value = new TimeSpan(33, 45, 22);
ws.Cell(ro, co + 1).DataType = XLDataType.Text;

ws.Cell(++ro, co).Value = "Text to Date:";
ws.Cell(ro, co + 1).Value = "'" + new DateTime(2010, 9, 2).ToString();
ws.Cell(ro, co + 1).DataType = XLDataType.DateTime;

ws.Cell(++ro, co).Value = "Text to DateTime:";
ws.Cell(ro, co + 1).Value = "'" + new DateTime(2010, 9, 2, 13, 45, 22).ToString();
ws.Cell(ro, co + 1).DataType = XLDataType.DateTime;

ws.Cell(++ro, co).Value = "Text to Boolean:";
ws.Cell(ro, co + 1).Value = "'" + true.ToString();
ws.Cell(ro, co + 1).DataType = XLDataType.Boolean;

ws.Cell(++ro, co).Value = "Text to Number:";
ws.Cell(ro, co + 1).Value = "'123.45";
ws.Cell(ro, co + 1).DataType = XLDataType.Number;

ws.Cell(++ro, co).Value = "Text to TimeSpan:";
ws.Cell(ro, co + 1).Value = "'" + new TimeSpan(33, 45, 22).ToString();
ws.Cell(ro, co + 1).DataType = XLDataType.TimeSpan;

ro++;

ws.Cell(++ro, co).Value = "Formatted Date to Text:";
ws.Cell(ro, co + 1).Value = new DateTime(2010, 9, 2);
ws.Cell(ro, co + 1).Style.DateFormat.Format = "yyyy-MM-dd";
ws.Cell(ro, co + 1).DataType = XLDataType.Text;

ws.Cell(++ro, co).Value = "Formatted Number to Text:";
ws.Cell(ro, co + 1).Value = 12345.6789;
ws.Cell(ro, co + 1).Style.NumberFormat.Format = "#,##0.00";
ws.Cell(ro, co + 1).DataType = XLDataType.Text;

ro++;

ws.Cell(++ro, co).Value = "Blank Text:";
ws.Cell(ro, co + 1).Value = 12345.6789;
ws.Cell(ro, co + 1).Style.NumberFormat.Format = "#,##0.00";
ws.Cell(ro, co + 1).DataType = XLDataTypes.Text;
ws.Cell(ro, co + 1).Value = "";

ro++;

// Using inline strings (few users will ever need to use this feature)
//
// By default all strings are stored as shared so one block of text
// can be reference by multiple cells.
// You can override this by setting the .ShareString property to false
ws.Cell(++ro, co).Value = "Inline String:";
var cell = ws.Cell(ro, co + 1);
cell.Value = "Not Shared";
cell.ShareString = false;

// To view all shared strings (all texts in the workbook actually), use the following:
// workbook.GetSharedStrings()

ws.Columns(2, 3).AdjustToContents();

workbook.SaveAs("DataTypes.xlsx");