Here is a small but polished tool that allows you to open, view and extract images from abr (brushes), tpl (tool presets) and pat (patterns) files. Abr/tpl/pat are the most popular formats to share brushes and patterns, you can find thousands of them in Internet.
Features: - support of all available versions of ABR, TPL an PAT files - displaying full Brush list or Stamp / Pattern items only - loading files from any location - both from Cloud Drive and any other cloud service - export selected images to Photos, Mail, Notes, Files etc - support of Drag and Drop on iPad - support of AirDrop - opening files copied to app folder using File Sharing on computer - opening files directly from Safari, Mail or any other app that include 'Open In' option