Creating a file launcher in Shortcuts

How can I use the same concept as David’s app launcher shortcuts for his home screen as a file launcher.

I have 4 or 5 files I use constantly and would love to launch them from the home screen via a shortcut and a choose from menu.

What app(s) do you use to open these files?

Some are stores on OneDrive and are excel. Some are PDF and stored in iCloud.