File-Magic is a versatile file management tool that simplifies the task of viewing, and handling numerous file formats, including hard-to-handle or diverse "dot" extensions.
In case you encounter common types such as .docx, and even more obscure ones such as . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/