1. Download the full airfoil libary
2. Unzip/extract to a temporary folder
3. Start Winfoil
4. Click on Import toolbar button or select from menu.
5. Select Eppler Format and check directory checkbox  Press OK
6. Browse to unzip folder and press OK to import all from the folder.

 If the airfoil already exists you will be prompted to overwrite or skip.
After import if the airfoil shape in the Airfoil List or Cad tabs appears distorted or incomplete please repeat the import process and ensure that the Eppler Format is selected for importing.

Screen shots of the steps are shown below.