Step 1: Click the Create a Double Puzzle Button.

Step 2: The Add double puzzle Collection pop up will appear. Enter your desired name of your project, then click Create.

Step 3: You will now see your project below. Now click the View button.

Step 4: Upload your double puzzle file by clicking on the Upload.txt or csv file button below.

Step 5: Upload file popup will appear. Now select the file you want to upload.

You will now automatically be redirected on your puzzle as shown below.