FileMagic is a powerful file-handling software that streamlines the task of opening, and handling a large range of file extensions, especially complex and multifaceted "dot" extensions.
If you need to work with common formats like .pdf, as well as uncommon ones like . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/