Why can’t I open any of the files included in the Ultimate Template Toolkit?
Here’s a link to a list of possible solutions to solve this issue: "The filename or extension is too long? Here’s a fix"
We recommend trying Solution 3 (easiest) and/or Solution 1 (second easiest).
Our team has had the most success when using these solution methods.
If you’re still having trouble, please reach out to us via our Support page.