# CoreGPT Help Center > How to install and use CoreGPT in Microsoft 365 and Google Workspace: step-by-step guides, plans and billing, and troubleshooting. - [Welcome to the CoreGPT Help Center](https://help.coregptapps.com/index.md): Guides for CoreGPT, the AI assistant for Microsoft 365 and Google Workspace: install, use it in each app, manage your plan and fix common issues. - [Welcome to CoreGPT](https://help.coregptapps.com/getting-started/overview.md): What CoreGPT is, how it works inside Microsoft 365 and Google Workspace apps, which AI models it uses and how your data is handled. - [Install for Microsoft 365](https://help.coregptapps.com/getting-started/install-microsoft-365.md): Install CoreGPT in Word, Excel, PowerPoint, Outlook, OneNote and Teams from Microsoft Marketplace, then open it from the ribbon. - [Install for Google Workspace](https://help.coregptapps.com/getting-started/install-google-workspace.md): Install GPT for Google Workspace™ once and use CoreGPT in Gmail, Drive, Calendar, Google Docs, Sheets, Slides and Forms. - [Your First Prompt](https://help.coregptapps.com/getting-started/first-steps.md): How to ask CoreGPT for what you want and get great results the first time, with examples for documents, spreadsheets, slides and email. - [Custom Assistants](https://help.coregptapps.com/getting-started/assistants.md): Save instructions once, such as your tone, language or format, and CoreGPT follows them in every chat. Create, switch and edit custom assistants. - [CoreGPT AI for Word](https://help.coregptapps.com/microsoft-365/word.md): Draft, rewrite, summarize and translate in Microsoft Word with CoreGPT. How to open it and what you can do. - [CoreGPT AI for Excel](https://help.coregptapps.com/microsoft-365/excel.md): Write formulas, clean data and analyze tables in Excel with CoreGPT, and run AI on whole ranges with =COREGPT() functions. - [CoreGPT AI for PowerPoint](https://help.coregptapps.com/microsoft-365/powerpoint.md): Generate a full deck from a topic, rewrite slide text, add speaker notes and translate presentations in PowerPoint with CoreGPT. - [CoreGPT AI for Outlook](https://help.coregptapps.com/microsoft-365/outlook.md): Summarize email threads, draft replies and polish emails in Outlook with CoreGPT. How to open and pin it, and how it uses the email you have open. - [Find CoreGPT in Outlook](https://help.coregptapps.com/microsoft-365/outlook/quick-start.md): Find the CoreGPT icon in Outlook on the web, new Outlook or classic Outlook, pin it, and try your first AI action in under a minute. - [CoreGPT AI for OneNote](https://help.coregptapps.com/microsoft-365/onenote.md): Summarize pages, organize notes, pull out action items and create flashcards and study guides in OneNote with CoreGPT. - [CoreGPT AI MeetSync for Teams](https://help.coregptapps.com/microsoft-365/teams.md): Summarize meetings, pull out action items and draft follow-up messages in Microsoft Teams with CoreGPT AI MeetSync. - [CoreGPT AI for Gmail](https://help.coregptapps.com/google-workspace/gmail.md): Summarize long email threads, draft replies in your tone, pull out action items and translate emails, right next to your Gmail inbox. - [CoreGPT AI for Drive](https://help.coregptapps.com/google-workspace/drive.md): Summarize any file in Google Drive, pull out key points and deadlines, translate it or ask questions about it, and create new Docs with AI. - [CoreGPT AI for Calendar](https://help.coregptapps.com/google-workspace/calendar.md): Ask about your schedule, find free time, move or create events by asking, and prepare for meetings with AI in Google Calendar. - [CoreGPT AI for Docs](https://help.coregptapps.com/google-workspace/docs.md): Draft, rewrite, summarize and translate in Google Docs with CoreGPT. How to open it and what you can do. - [CoreGPT AI for Sheets](https://help.coregptapps.com/google-workspace/sheets.md): Write formulas, clean data and analyze tables in Google Sheets with CoreGPT, and run AI on whole ranges with =COREGPT() functions. - [CoreGPT AI for Slides](https://help.coregptapps.com/google-workspace/slides.md): Generate a full deck from a topic, rewrite slide text, add speaker notes and translate presentations in Google Slides with CoreGPT. - [CoreGPT AI for Forms](https://help.coregptapps.com/google-workspace/forms.md): Generate surveys, quizzes with answer keys and intake forms in Google Forms with CoreGPT, then refine them with AI. - [Plans & Credits](https://help.coregptapps.com/getting-started/plans-and-credits.md): How CoreGPT plans work: the free plan, single-app plans, and one plan for every Microsoft 365 or Google Workspace app with shared credits and team seats. - [Manage Your Subscription](https://help.coregptapps.com/help-support/manage-subscription.md): How to cancel a CoreGPT subscription, update your card, download invoices or change plans, for single-app plans and Microsoft 365 or Google Workspace plans. - [Team Plans](https://help.coregptapps.com/getting-started/teams.md): Share one CoreGPT plan with your team: invite teammates, add seats, manage roles and let colleagues join with their company email. - [Frequently Asked Questions](https://help.coregptapps.com/help-support/faq.md): Answers to common questions about CoreGPT: installing, using it in each app, plans and credits, cancelling, privacy and support. - [Troubleshooting](https://help.coregptapps.com/help-support/troubleshooting.md): Fixes for the most common CoreGPT problems: can't find it, it won't open or sign in, a plan not showing, running out of credits and errors. - [Contact Support](https://help.coregptapps.com/help-support/contact.md): How to reach CoreGPT support: chat inside the app, chat on our website, the contact form or email. - [Uninstall CoreGPT](https://help.coregptapps.com/help-support/uninstall.md): How to remove CoreGPT from Word, Excel, PowerPoint, Outlook, OneNote, Teams and Google Workspace. ## Optional - [Website](https://coregptapps.com) - [CoreGPT Blog](https://coregptapps.com/blog) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.