If you’ve landed here searching for a "crypt14 file reader online" , you’ve likely encountered a file with the .crypt14 extension that you can’t open. This post explains what these files really are, whether an online reader exists, and what you should actually do next. What Is a .crypt14 File? A .crypt14 file is not a standard document format (like PDF, DOCX, or JPG). Instead, it is typically a file encrypted by a ransomware variant – most commonly CryptoWall version 3.0 or later.