Move from Microsoft 365 to Nextcloud

Take it out

1. 1

   Step 1

   Download the files you will keep

   Take OneDrive and SharePoint libraries down to a disk. Shared links do not survive. Send people the new links after the copy.

2. 2

   Step 2

   Export calendars and contacts

   Save calendars as ICS and contacts as VCF from Outlook or the web. Mail is a separate project. Do not promise a mailbox move in the same weekend as the files.

3. 3

   Step 3

   List the Office files that must keep their layout

   DOCX, XLSX, and PPTX open in LibreOffice and ONLYOFFICE with gaps. Complex Excel and tracked changes need a human to check them.

Put it in

1. 1

   Step 1

   Install Nextcloud and put the files in

   A small team fits in the documented Docker or snap install. Upload the libraries. Turn on the desktop client for the people who sync.

2. 2

   Step 2

   Add an office app and Talk

   Collabora or ONLYOFFICE is what makes a document editable in the browser. Talk is the chat. Both are extra apps, not part of the file sync alone.

3. 3

   Step 3

   Decide where mail lives

   Nextcloud Mail is a client. The mailboxes need a server such as mailcow, or you can leave mail at Microsoft and only move the files. Thunderbird is the desktop client either way.

What you lose

• Outlook rules, Teams meetings, and SharePoint permissions

  Those do not import. Recreate the calendar, the one team chat, and the folder permissions people use.

• Publisher files

  Publisher leaves Microsoft 365 in October 2026. Save a PDF before October 1, 2026. Nextcloud can store that PDF. It cannot edit the .pub file.

• A single installer

  Microsoft 365 is one subscription. This path is several apps. LibreOffice alone is enough if you only need the desktop documents.