A family of Microsoft word processing software products for creating web, email, and print documents.
Hello !
You can reinstall the Office suite by going to https://account.microsoft.com/services, selecting your license and clicking on "Install" (follow the AI answers' instructions, they are valid)
You can also download the latest version of Office here : https://learn.microsoft.com/en-us/officeupdates/update-history-office-for-mac. Here, you can download apps individually, if required.
Please let me know if you have any other question !