All of the comic files are packed on .CBR and/or .CBZ file formats and some comics are PDF, mobi and epub. Here are some of the reader apps that i can recommend : YAC Reader (Win, OSX, Linux, iOS), ComicRack (Win, Android, iOS), CDisplayEx.
To extract any compressed files, I recommend using 7-Zip.
If you want to Report Broken Links, Request Comics or report any Copyright Infringement, please use Click here to: Report Broken Links / Request Comics / Copyright Infringement red button and is located on every comic post down after download links. Use real email address to know when is fixed any broken links. Thanks!