As always, footprints are organized by horizontal center-to-center measurements, smallest to largest. If multiple footprints exist with the same horizontal center-to-center measurements, they are further organized by vertical center-to-center measurements, smallest to largest. Manufacturers/brands are organized alphabetically. Column A is freeze paned for the included footprints. Row 1 is freeze paned for the included manufacturer/brands. This means that as you narrow down a specific model/models or manufacturer/brands, this information stays locked in your screen. This allows you to quickly find information.