File-Magic is a versatile file viewer that streamlines the task of viewing, and handling a large range of file extensions, such as hard-to-handle or multifaceted "dot" file types.
If you need to work with common file extensions like .pdf, and even less common file types including . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/