For administrators, the recommended method is using the .
Q: Can I customize the proofing tools to suit my needs? A: Yes, you can customize the proofing tools to suit your needs, such as setting language preferences and adjusting grammar and spelling settings. office 365 proofing tools offline installer
These are a separate standalone product — they are part of Office 365 / Microsoft 365 Apps, but you can install additional languages and proofing tools without reinstalling Office. For administrators, the recommended method is using the