For Office 2021, there is no single, official "standalone" .exe or .msi file solely for proofing tools as there was for legacy versions like Office 2016. Instead, Microsoft utilizes the Office Deployment Tool (ODT) to manage proofing tools as specialized Click-to-Run packages that can be downloaded for offline use. Core Mechanism: The Office Deployment Tool (ODT)
Download the Office Deployment Tool from Microsoft (requires internet once to fetch the tool). office 2021 proofing tools offline installer
Here is what you need to know about the Office 2021 Proofing Tools Offline Installer: For Office 2021, there is no single, official "standalone"
The Office 2021 Proofing Tools offline installer is an essential resource for IT administrators and users in restricted or high-scale environments. By leveraging the Office Deployment Tool or Volume Licensing channels, you can reliably deploy multilingual proofing capabilities without requiring each endpoint to contact Microsoft's servers. Proper architecture and version matching ensure seamless integration with the core Office suite. Retail Versions: If you bought Office Home &
OfficeClientEdition: Set to 64 or 32 to match your existing Office installation.