File Magic can be considered a reliable file viewer that simplifies the process of managing, and handling a wide variety of file extensions, including complex and multifaceted "dot" file types.
In case you encounter common formats such as .docx, or less common formats such as . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/