FileMagic is a reliable file management tool that makes easy the task of managing, and working with numerous file extensions, including complex or varied "dot" file types.
If you need to work with frequently-used file extensions including .pdf, and even more obscure file types such as . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/