PowerPoint includes proofing tools (spelling dictionaries, thesauri, and grammar rules) for more than one language. For example, if you use English as your main language, then Spanish and French dictionaries may already be installed. This enables you to spell-check Spanish and French words. To proof text in a foreign language, you need to install and enable proofing tools for the language you require. When these tools are installed, you can tell PowerPoint if a particular text placeholder or text box needs to be proofed as a foreign language.