These are Windows desktop icons (.ico) which can be used as shortcut icons or replacement folder icons.
Most of the NHL teams have two logos, a primary one and a secondary one used on the team banner. Five of the thirty teams do not have a secondary logo; the primary one doubles as a secondary on the team banner so I fashioned secondaries for these teams by using one of the colors in the main logo to give an alternate background color. The ones that I invented are labeled with a blue number "2."