Magix programs are usually monolingual. If you bought and installed a French version, then that's what it is. If you have a program from a multilingual batch (e.g. Canadian batch with French and English version on it), you will have to specify the desired version already during the installation process. So, in this case, you would have to uninstall the program and reinstall the correct language version. If this is not the case, and you just accidentally bought the wrong language version or you bought it under the assumption that you could change the language later, maybe Magix sales can work out something for you and exchange the product for the equivalent English version.