If you or someone else has previously exported a homework set to a set definition file, you can turn that file back into a homework set.
-  Use the File Manager to place the set definition file (*.def) in the templates directory of your WeBWorK course. 
-  In the Homework Sets Editor, select “Import” and choose from the menus as appropriate. 
-  Click “Take Action!” 
-  Make sure the  due dates-  on your imported assignment are correct. 
-  Note that your assignment will not be accessible to students until you  assign-  it to them.