How to convert files to UTF-8

To convert files to UTF-8 follow these easy steps:

1. Download and install this powerful free text editor: Notepad++
    
2. Open the file you want to convert in Notepad++
    
3. In the top menu select Encoding > Convert to UTF-8 (option without BOM)
    
4. Save the file

That's it, you should now have a valid file converted to UTF-8 encoding.