internal string ToXmlString(int rowNumber, int columnNumber, string nullValSymbol = "-") { var cellValue = CellValue; if (string.IsNullOrEmpty(cellValue)) { cellValue = nullValSymbol; } var strVal = ExcelExportHelper.FilterControlChar(cellValue.Replace("]]>", "]]>")); if (strVal.Length > 32766) { strVal = strVal.Substring(0, 32766); } return ($"<c r=\"{ExcelExportHelper.GetExcelColumnName(columnNumber)}{rowNumber}\" t=\"inlineStr\"><is><t><![CDATA[{strVal}]]></t></is></c>"); }