i have multiple text files and i have to change the pattern of each text file data open and edit the each text file is very difficult. so anyone please solve my issue with at one command.The data in each file is this like URL:email:pass and i have to replace the url at the end

i have a text files and i have to edit the each text file data and change the pattern this very difficult to me open the one by one each text file data and change the text data.