Simultaneous Document sharing/editing

Hello community,

I am new to Zimbra and I am looking for an alternative to Google Docs.

Is it possible to have a similar functionality with the Community Edition? I have looked quite long at the feature list, but couldn't find any real hint...

So the question in detail:

- Ability to share documents easily (send a link for example with temp. acess)
- Ability to edit documents online (.doc/.swf or so, .xls/.?, .)
- Abilit yto edit simultaneously the above formats

Thank you a lot for your answers.