File Magic can be considered a versatile file viewer that simplifies the task of managing, and handling a wide variety of file extensions, such as the often confusing or diverse "dot" files.
If you need to work with frequently-used formats including .pdf, and even less common ones like . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/