Substitute or replace letters

с русским дружите?
http://excelvba.ru/code/TranslitAddin
http://excelvba.ru/code/translit

Hello,thanks for the answer, i'm from Bulgaria. I need this, because somethimes we write in bulgarian but with latin characters, but i need the text in clear cyrilic. It works great, but is there a chance to make it with visible function or something, not with a macros. Because i need to edit the function and integrade logical data. So i thing something exactly like this but if it is possible to be without using of macros.

it's easy with one letter, what to do with reach or succeed
you should upload a replace table

Ok, but what function to use to replace the whole text at once?

table first