public void EditCellValue(string fileLocation, string sheetName, string newCellValue, int row, int column) { XLWorkbook Workbook = new XLWorkbook(fileLocation); IXLWorksheet Worksheet = Workbook.Worksheet(sheetName); IXLCell CellForNewData = Worksheet.Cell(row, column); CellForNewData.Clear(); CellForNewData.SetValue(newCellValue); Workbook.SaveAs(fileLocation); }