FileMagic is known as a versatile file viewer that simplifies the process of opening, and managing a wide variety of file extensions, especially complex and diverse "dot" files.
Whether you're dealing with standard file extensions like .docx, or more obscure ones like . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/