How to use
Place these files in /Library/Keyboard Layouts
Then go to Preferences –> Keyboard –> Input Sources
Add new keyboard source.
This layout will be
in the group Others under the name Russian - BG46
Credits
Source taken from here:
https://macdays.ru/hackintosh/solving-the-problem-with-writing-the-letter-e-on-your-keyboard-hackintosh/