There is an awesome site that can decode those annoying SharePoint GUID such as:
%7BBE72746E%2D85DA%2D41AB%2DBB91%2D73941AF9DC10%7D
Go to the following site the decode this GUID in a second:
http://meyerweb.com/eric/tools/dencoder/
{BE72746E-85DA-41AB-BB91-73941AF9DC10}
Awesome!
For the decode/encode, there is another website, that I found during my Google search. That website is
https://url-decode.com/
You must check it out. IT has 100+ web utilities for different users.