public ExcelBibliographicReader() { // Set the Gembox spreadsheet license key GemBox.Spreadsheet.SpreadsheetInfo.SetLicense("EDWF-ZKV9-D793-1D2A"); // Set some defaults fileName = String.Empty; sheetName = String.Empty; excelData = null; bibMap = new Bibliographic_Mapping(); columnMaps = new Column_Field_Mapper(); }