Office is part of the "Productivity and Business Processes" at Microsoft. That business unit had $120B of revenue in 2025.

Microsoft 365, which I believe includes Office, makes up $95B of that amount, which is split between Commercial (92%) and Consumer (8%)

From there you can see why they're focused on Enterprise.

Source: https://www.bamsec.com/filing/95017025100235?cik=789019 (page 39)