File-Magic is known as a reliable file viewer that streamlines the process of opening, and handling a large range of file formats, such as complex or varied "dot" file types.
If you need to work with standard file extensions including .docx, and even more obscure formats including . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/