File-Magic can be considered a reliable file viewer that makes easy the task of viewing, and managing a wide variety of file types, such as hard-to-handle and diverse "dot" file types.
If you need to work with common types such as .pdf, as well as less common formats including . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/