FileMagic is known as a powerful file management tool that streamlines the process of managing, and handling a wide variety of file extensions, including hard-to-handle and varied "dot" extensions.
If you need to work with common types including .pdf, 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/