HTML means Hypertext Markup Language and is the standard format for files used on websites and web applications. Its distinctive feature is that, instead of marking format visually, like Microsoft Word, it does so with tags. When the file is viewed with a web browser, the format is displayed correctly. It is therefore vital to respect these tags. Thanks to the tools we use to translate this kind of file, we can process files so that the tags are protected during the translation process and the final format is correct.