These are zipped Jumpman level sets. To play them, you'll need to get
Jumpman from www.runhello.com.
Download the level set that you want to play, then unzip it and put it
into the Jumpman folder. Run the game and enter the editor to view and
play the levels.
Click on a column header to sort.
Hover over a cell to display its column name.
Click on a row to view a short description.