If you cannot access this feature, make sure you have the correct path listed under Options|Executables.
To wrap code
From the Utilities menu, select Wrap Code. The Wrap Code window appears.
In the Input file box, enter the file (of PL/SQL code) you want to wrap, including the full path, or click the drill down button to browse for the file.
When you have selected your file, the text of the file appears in the Input File Text area.
The output file is, by default, named the same as the input file, but with the extension .plb.
Click Wrap Code. The wrapped code appears in the Output File Text area and is automatically saved to the specified output file.