Add-ins
Deploy DeutschlandGPT as an add-in inside Microsoft Office across your organisation
Bring DeutschlandGPT into Word, Excel, PowerPoint, and Outlook. This page gives you a manifest URL and step-by-step deployment instructions for each available add-in.
You need the permission Manage organisation settings, and the page is only available to business organisations. All four add-ins are always listed. Whether a person may use one is decided by their role: Use the Word add-in, Use the Excel add-in, Use the PowerPoint add-in and Use the Outlook add-in.
Deploy an add-in
Every enabled add-in shows up as a card. Expand a card to work through the deployment:
- Manifest URL: a read-only link to the add-in's
manifest.xml. Copy it and paste it into the Microsoft 365 admin center to roll the add-in out organisation-wide. - Prerequisites: what must be in place before you start, namely an active Microsoft 365 tenant, the right admin role, and add-ins enabled in the tenant settings. Which Office versions your members need is covered below.
- Deployment steps: numbered instructions for deploying via the Microsoft 365 admin center, using Integrated apps or Centralised Deployment.
- After install: what members need to do once the add-in reaches their accounts.
- Remove: how to pull the add-in back out of the admin center if you need to.
Without Microsoft 365
The four add-ins depend on Microsoft 365 to different degrees.
Outlook is a mail add-in. Microsoft registers this type against the mailbox rather than against the application, so it requires an Exchange mailbox: either in a Microsoft 365 tenant or on your own Exchange Server. It cannot be installed for plain IMAP or POP accounts and will not show up in Outlook there. That is a Microsoft platform rule, not a setting DeutschlandGPT can change. Without an Exchange mailbox the route is the chat: drag a single message in as an .eml or .msg file and have it summarised or answered there.
Your own Exchange Server comes with three limits set by Microsoft. The manifest asks for requirement set Mailbox 1.5, which is supported from Exchange Server 2016 onwards, so Exchange 2013 and older will not load the add-in. You deploy it in your own server's Exchange admin center rather than in the Microsoft 365 admin center. And it appears in classic Outlook and in Outlook on the web of your own Exchange Server, but not in the new Outlook for Windows or in Outlook for Android and iOS: those do not support add-ins against mailboxes on your own server.
Outlook on the web of your own Exchange Server needs one step on our side. There, Outlook on the web runs at an address of your organisation, such as https://mail.your-company.com, and DeutschlandGPT only lets the add-in start at addresses we know. Send the address your people open Outlook on the web at to support@deutschlandgpt.de and we will enable it. Until then, Outlook on the web reports an error when the add-in starts. Classic Outlook is not affected.
Word, Excel, and PowerPoint are task-pane add-ins and also run on a locally installed Office with no Microsoft 365 tenant. Without the admin center the route is a trusted catalog: the manifest file sits on a network share, and IT registers its UNC path in the Office Trust Center, optionally rolling that setting out to every workstation by group policy.
Signing in to the add-in is independent of all this. People sign in with their DeutschlandGPT account, so with an email address and password or through their organisation's SSO. Nobody needs a personal Microsoft account for it.
Supported Office versions
The add-ins run in the Office task pane. That requires a modern display component, plus a minimum version of the Office JavaScript interfaces that differs per application. Check this before you roll out, otherwise the add-in never shows up in the catalogue at all.
| Add-in | Microsoft 365 or retail perpetual | Volume-licensed (LTSC) | Mac |
|---|---|---|---|
| Word | Version 2302 | Office 2024 | 16.70 |
| Excel | Version 1903 | Office 2021 | 16.24 |
| PowerPoint | Version 2207 | Office 2024 | 16.62 |
| Outlook | current version | Office 2021 | current version |
Office 2016 and Office 2019 are not supported, and there is no way to retrofit support. Volume-licensed installations of those versions display add-ins exclusively in the Internet Explorer component, regardless of whether a newer component is installed on the machine. Our interface cannot run there. Microsoft ended support for both versions on 14 October 2025.
To read the licence type, open File → Account → About Word: a version number shaped like
16.0.5565.1000 means a volume licence, one shaped like 2206 (Build 15330.20264) means a retail
perpetual copy.
Who can manage add-ins
Only people with the permission Manage organisation settings can open this page and copy the manifest URL. Who may use an add-in is set per role under Roles. The PowerPoint add-in builds presentations on your organisation's Office templates.