using ClosedXML.Excel; using System; using System.Linq; namespace ClosedXML_Examples.Styles { public class StyleIncludeQuotePrefix : IXLExample { public void Create(String filePath) { var workbook = new XLWorkbook(); var ws = workbook.Worksheets.Add("Style IncludeQuotePrefix"); var data = Enumerable.Range(1, 20) .Select(i => new { IntegerIndex = i, StringIndex = i.ToString(), PaddedString1000 = (i * 1000).ToString().PadLeft(8, '0'), PrependedString1000 = "Str" + (i * 1000).ToString().PadLeft(8, '0') }); ws.FirstCell().InsertData(data); // Columns B to D will be of type text // but column B will not have the leading quotation mark ws.Column("B").Style.IncludeQuotePrefix = false; // Columns C and D will have the leading quotation mark ws.Column("C").Style.IncludeQuotePrefix = true; ws.Column("D").Style.SetIncludeQuotePrefix(); ws.Columns().AdjustToContents(); workbook.SaveAs(filePath); } } }