If you have used the IEF composer the process for saving and retrieving data models is the same. For those who are not familiar with IEF, the steps are as follows
 

• Open composer (cool gen)

File  --  Save the model -- on the  C: \ drive
( in the campus labs it is saved under C:\docs \ model name. ief)

• Open windows explorer

Go to c:\ drive
 Click on docs folder . The files will be listed
 
• To winzip your project:

Click on your file using the right side of the mouse ( or open winzip and choose the file).  From the pull down menu   choose 'Add to zip'.
Choose the site where you want the document is to be zipped  ( C:\ or a:\ ) . Give it a file name.zip
 
• To Extract your project:

Click on the drive your project is (c:\ or a:\) in windows explorer
 Choose your project.zip file
Click the right side of the mouse ( or open winzip and choose the file). From. the pull down menu choose extract file and specify the path and file where you want it to be save. Remember to save it as an *.ief file.
 
• Close windows explorer
• Open composer and click on your model from the list of ief files.