Base64 encoding is commonly used from the encryption with binary data and sometimes you might need to understand what is the information is being encoded from the data.
Now, you do not need to find the encryption string from the Internet or self designed script. You may now convert your encoding script from Notepad++.
With the following string,
Welcome to www.mickgenie.com
It should look like the command as below.
To get the Base64 encoding/decoding, install the plugin as article below.