Folders names that include the character "." are supported with the "Open Folder" option in the hyperlink options.
Filenames like "N. East Modification of C. Plant.pdf" are either not allowed, or on the second attempt, crash the program and there is a dialogue that says "Index was outside the bounds of the array"
The solution to the dozens of PDFs that I am hyperlinking for my team is to hyperlink the Folder rather than the file.