File-Magic is a versatile file viewer that streamlines the task of viewing, and handling a wide variety of file formats, including the often confusing and diverse "dot" files.
If you need to work with standard types like .pdf, and even uncommon ones such as . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/