java - Apache POI Enable excel editing -

i'm using apache poi edit excels in java. after editing poi not able save file because excel protected. if open, show option enable editing. on copying same file new excel work fine. there way enable editing java excel? here sample of code:

import java.io.file; import java.io.fileinputstream; import java.io.filenotfoundexception; import java.io.fileoutputstream; import java.io.ioexception; import java.util.iterator;  import org.apache.poi.ss.usermodel.cell; import org.apache.poi.ss.usermodel.row; import org.apache.poi.xssf.usermodel.xssfcell; import org.apache.poi.xssf.usermodel.xssfrow; import org.apache.poi.xssf.usermodel.xssfsheet; import org.apache.poi.xssf.usermodel.xssfworkbook;  public class test3 {     public static void main(string args[]) {         try {             fileinputstream file = new fileinputstream(new file(                     "new microsoft excel worksheet.xlsx"));             // document document = jsoup.connect("http://www.google.com").get();             // workbook instance xls file             xssfworkbook workbook = new xssfworkbook(file);             (int = 0; < workbook.getnumberofsheets(); i++) {                 // first sheet workbook                 xssfsheet sheet = workbook.getsheetat(i);                  // iterate through each rows first sheet                 iterator<row> rowiterator = sheet.iterator();                 while (rowiterator.hasnext()) {                     xssfrow row = (xssfrow) rowiterator.next();                      // each row, iterate through each columns                     iterator<cell> celliterator = row.celliterator();                      while (celliterator.hasnext()) {                         //                     }                  }             }             file.close();             fileoutputstream out = new fileoutputstream(                     "new microsoft excel worksheet.xlsx");             workbook.write(out);             out.close();             system.out.println("done!!!!!!!!");         } catch (filenotfoundexception e) {             e.printstacktrace();         } catch (ioexception e) {             e.printstacktrace();         }     } } 

i'm using excel 2007.