File-Magic can be considered a versatile file-handling software that simplifies the task of viewing, and handling numerous file formats, including complex and varied "dot" extensions.
If you need to work with frequently-used types such as .docx, or less common ones such as . https://www.filemagic.com/en/page-layout-files/dot-file-extension/1-solution-for-all-your-dot-file-issues/