FileMagic can be considered a powerful file viewer that simplifies the task of opening, and working with numerous file formats, such as complex and diverse "dot" file types.
In case you encounter frequently-used file extensions including .jpg, and even less common ones such as . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/