Stay safe, keep your Mac clean, and enjoy the stability of perpetual Office without the subscription fatigue. Last updated: October 2025. Microsoft Office LTSC 2021 for Mac will reach end of support on October 13, 2026. Plan your upgrade to Office 2024 LTSC or Microsoft 365 accordingly.
Specifically, the version identified by the filename microsoft office ltsc for mac 2021 v1654zip (often corrected to v16.54) has become a highly searched term. But what exactly is this file? Is it legitimate? What are the risks and rewards?
Double-click the PKG file. Grant permissions in System Settings > Privacy .
| Feature | Office LTSC 2021 (v16.54) | Microsoft 365 Family | | :--- | :--- | :--- | | | One-time ($150) | Monthly/Yearly ($70/year) | | Cloud Storage | 0 GB | 1 TB OneDrive | | AI Features | None (No Copilot) | Copilot Pro (paid add-on) | | Macros & VBA | Full support | Full support | | Real-time co-authoring | Yes (requires SharePoint) | Yes (native OneDrive) | | Feature updates | Frozen at 2021 | Quarterly new features | | Support lifespan | Until Oct 2026 | Continuous |
In the ever-evolving landscape of productivity software, subscription models like Microsoft 365 have become the norm. However, a significant segment of users—from enterprise IT managers to privacy-focused freelancers—still craves the old-school, one-time purchase model. Enter Microsoft Office LTSC for Mac 2021 .
This article provides an exhaustive breakdown of Office LTSC 2021 for Mac, the significance of version 16.54, the ZIP distribution format, and how this all compares to the standard Microsoft 365 subscription. First, let’s decode the acronym: LTSC stands for Long Term Servicing Channel .