Office365

Download
Open Office 365: https://www.office.com/.
Sign in with the UZH Microsoft Account (in the center or on the top right). 
Nowadays (2026), Copilot opens up first, click on the 3by3 dot matrix icon in the top left, then More apps. 
Then click on install apps, then Microsoft 365 apps and proceed from there.

Excel
Issues
Numbers are unwillingly converted to dates
Excel is configured to recognize dates and change the formatting of a cell automatically, whenever it recognizes a date.
Sometimes the recognition is faulty, which results in cells being formatted as dates, even though it is just a number.
There are two approaches to fix the issue:
Format all the cells before inserting numbers (select either "standard" or "number"):
Change decimal & thousands separator (regional settings):
Click File > Options
On the Advanced tab, under Editing options, clear the "Use system separators" check box
Type new separators in the "Decimal separator" and "Thousands separator boxes"

OneDrive
No good solution for UZH users.
In general, there are different variants to access !OneDrive from Linux.
Unfortunately: UZH policy blocks apps (used with UZH Microsoft account), which are not not privileged (security reasons) - the only allowed app is Microsoft !OneDrive App (only for Windows/Mac).
It is possible to install a Web-App, which behaves a little bit like a lokal app, but the files are still remote.
OneDrive WebApp
Open https://uzh-my.sharepoint.com/ and log in - best in Chrome or Brave.
Click on the install icon (upper right corner)
From now on, you can start !OneDrive via the Menu > Type: !Onedrive > click
But this is only a webinterface, not local storage, see drive.math.uzh.ch for a file sharing solution including local storage.

Outlook
URL: https://outlook.com
To login, use your UZH identity (email address,  MFA setup https://wiki.math.uzh.ch/public/books/public-wiki/page/microsoft-authentication)
FAQ: https://www.zi.uzh.ch/de/support/Outlook-und-Kollaboration-Office-365/outlook/faq.html
Out of Office
https://support.microsoft.com/en-us/office/set-up-auto-reply-out-of-office-cc0e480f-973e-4412-a27b-8a52108d6d51
Take care that you put your OoO message two times in the 'automatic reply'-Settings:
Send automatic replies inside your organization
Send replies outside of your organization
Shared Mailbox
Webinterface
Open another mailbox
Shared Accounts im Outlook Webinterface anzeigen
Outlook App (e.g. Citrix)
Shared Mailbox anzeigen
Microsoft Help
By default, all shared mailboxen should be shown automatically!
If some is missing, add them manually:
Attention: there is no password for shared mailboxes (=Funktionskonten). Click on 'Mit einem anderen Konto anmelden' and specify your personal email.
New Mail: 'From' automatically selected by current selected mailbox
If there are multiple email adresses configured and a new email is created: it would be nice if 'from' points automatically to the last selected email account.
According to Microsoft, this is not supported by Outlook (Link).
Why is the 'From' button missing?
See: Link
Saving mail in drafts folder of the current email account
Short: only with extra effort.
Long: https://learn.microsoft.com/en-us/answers/questions/5490248/drafts-are-saving-to-my-drafts-folder-instead-of-m
Email forward
Setting up an email forward in Office 365 (Outlook) via Webinterface.
Log in to https://outlook.office365.com
Go to 
Settings > View all Outlook settings
Go to 
Mail > Forwarding
Disable
When you log in on the webinterface, just click on Turn Off:
Hints
Outlook for Mac - Realname
Beim anlegen des IMAP Kontos: bei der Anmeldung „Synchronisation mit Microsoft Konto“ ausschalten. Danach kann beim Konto der Realname geändert werden.
Apple Mail and 'Shared Mailbox'
Not supported.
If you try to configure, you'll receive 'There is already an account'
https://learn.microsoft.com/en-us/answers/questions/5791910/microsoft-shared-mailbox-in-apple-mail
Recommendation: Use Outlook for Mac.
'Reply All' should not include myself
Currently we don't know if this is an option.
Message: Outlook could not be started
Fix: Systemsteuerung > Benutzerkonten > Mail (Microsoft Outlook) > Profile: Profile Anzeigen > Entfernen
 
Observations - needs to be investigated
Send a mail via Thunderbird (Sender is personal account) to an outlook shared mailbox (configured as a mailling list via rules). Sender is member of the mailing list.
Mail is not received by the sender - not clear if the other member received the mail.
Send a mail via Thunderbird (Sender is personal account) to a not existing outlook address ...@uzh.ch
No error Message. Even not a Mailer Daemon error.
Sending via Outlook Web generates a Mailer Daemon error.
Send a mail from a shared mailbox, one of the receivers deliver an automatic response.
The response is received on the personal account, not on the shared mail box