A family of Microsoft word processing software products for creating web, email, and print documents.
If you uninstall the Office applications, your data files will still be present on your PC, but you'll need to use other programs for editing the files of course.
Deleting your Microsoft account is a separate process. It can be accessed via https://www.office.com. Remember that if you do not have a subscription for Office, the amount of OneDrive storage will be smaller.