Switch from Office 2021 and Office LTSC 2021 to Your product
Here is how to move your work from Office 2021 and Office LTSC 2021 to Your product, step by step.
Why people leave Office 2021 and Office LTSC 2021 now
Microsoft ends support for Office 2021 and Office LTSC 2021 on October 13, 2026. After that, these apps get no more security updates.
- Support ends: October 13, 2026 (Microsoft)
- Office version: 2021 (Microsoft)
- What is included: Office 2021 and Word, Excel, PowerPoint, Outlook, Access, OneNote, Publisher, Visio and Project 2021 (Microsoft)
- Volume license version: Office LTSC 2021 and its apps, also October 13, 2026 (Microsoft)
- After that date: No new security updates, non-security updates or paid or free support (Microsoft)
- Office 2021 editions: Home and Business, Home and Student (also for Mac), Professional (Microsoft)
- Publisher: Removed from Microsoft 365 on or shortly after October 1, 2026 (Microsoft)
- People who bought Office 2021: Get no security updates after October 13, 2026 (Microsoft)
You cannot stay on the old setup. You have to move to the new one, or leave.
What Your product gives you
Write two or three short lines here. Say what Your product does, who it is for, and what it costs. Use only facts you can show.
How to move from Office 2021 and Office LTSC 2021 to Your product
- Check which Office you have. Open Word, then File > Account. It shows the version name.
- Save Publisher files as PDF. If you use Publisher, open each .pub file and choose File > Save as > PDF.
- Pick what comes next. Choose a newer Office, a Microsoft 365 plan or another office suite. Test your files in it before you switch.
- Import into Your product. Say which files you accept and how long an import takes.
Tell readers the key date: October 13, 2026.
Questions people ask
If Your product has a direct answer to one of these, add it here. Keep it short and true.
How to help new users settle in
Send one short email. Say what changed, where to find you now, and what they need to do. Put the most important line first.
If there is a date, send a short reminder a few days before it. Keep a copy of the list you sent it to.
Sources
- Ending Support in 2026 — Microsoft (primary), checked 2026-10-13
- Office 2021 lifecycle — Microsoft (primary), checked 2026-10-13
- Microsoft Publisher end of support — Microsoft (primary), checked 2026-10-13