home.md

@@ -54,7 +54,11 @@ Install nextcloud notes app for Android or iOS, select as a server your existing
 
 If you use the Deck app for task or project management there is also a nice Android App, also available for [F-Droid](https://f-droid.org/de/packages/it.niedermann.nextcloud.deck/). Choose as server https://faircloud.eu/nextcloud
 
-### User Documentation
+## Only Office 
+
+faircloud has Only Office embedded to collaborate on documents. OO prefers docx, pptx, xlsx file formats. The Open Document Foundation formats odt, odp, ods are also supported, but may be not fully compatible to rendering with the  LibreOffice or Collabora editors. 
+
+## User Documentation
 
 [nextcloud 20 user manual](https://docs.nextcloud.com/server/20/user_manual/)
 
@@ -65,7 +69,7 @@ For the Thunderbird Lightning Calendar you use the link behind the three dots (s
 ![Bildschirmfoto_2019-01-31_21-12-06](/uploads/0c8d2ff97bf571bd8e4cfcb58fe5eb79/Bildschirmfoto_2019-01-31_21-12-06.png)
 
 
-### Managing groups
+## Managing groups
 
 With fairapps-basic or fairapps-pro you can manage memberships in circles. Members need be also activated with the circles app, so they can confirm their membership.