Why '&reg' present inside link converted in to ' ® 'symbol by uipath

i am trying to read the link from excle file and send mail ,insde mail body i use this link but when inside this mail body link few thing change like ‘&reg’ into ® symbol why?
please help me .

Use this&
reason is you follow the HTML5 rules for when & is valid without being escaped (e,g, when followed by a space) or otherwise always escape & as & whenever in doubt.

in our link we have to use &reg not &
but when we use &reg it automatic convert in to ®?

when u send a html data on an email it will convert and that is why the way it will help you if you use like its mentioned above(’$amp:’ and you will get the exact text on your email