File Magic can be considered a reliable file viewer that simplifies the process of opening, and managing a large range of file types, including the often confusing and diverse "dot" extensions.
If you need to work with common types like .docx, and even less common file types like . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/