This guide demonstrates how to edit XLS, XLSX, XLSM, XLSB, ODS, SXC spreadsheets with hidden worksheets, protect edited spreadsheet with password and many other powerful features of GroupDocs.Editor for Java....tab for opening by 0-based index and a boolean flag that indicates...setWorksheetIndex ( 0 ); //index is 0-based, so this is 1st tab...