FileMagic is known as a reliable file-handling software that simplifies the process of managing, and managing a large range of file types, including the often confusing and varied "dot" extensions.
In case you encounter standard file extensions like .docx, and even more obscure ones like . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/