How to get document view working in Zimbra Collaboration 8.5 portfolio?

Question

Zimbra

Good afternoon.
Installed Zimbra Collaboration 8.5.0 on CentOS 7 minimal. Received an official key to activate the Network Edition functionality for 60 days from the site. Libreoffice-headless installed before Zimbra, according to the official instructions from the site.
When clicking on a DOC/DOCX/XLS/XLSX/ODT file in the briefcase, it says, "We cannot generate the preview of the file. Click here to download it."
PDF and TXT are displayed correctly.
What could I be missing?

Answer 1

It is necessary not only to put headsles
, here is a list of what I have, though it
works on centos 6 preview

nux-libreoffice.org-rpms-release-0-1.el6.nux.noarch
libreoffice-opensymbol-fonts-4.0.4.2-9.el6.noarch
libreoffice-core-4.0.4.2-9.el6.x86_64
libreoffice-graphicfilter-4.0.4.2-9.el6.x86_64
libreoffice-calc-4.0.4.2-9.el6.x86_64
libreoffice-pdfimport-4.0.4.2-9.el6.x86_64
libreoffice-emailmerge-4.0.4.2-9.el6.x86_64
libreoffice-base-4.0.4.2-9.el6.x86_64
libreoffice-ure-4.0.4.2-9.el6.x86_64
libreoffice-writer-4.0.4.2-9.el6.x86_64
libreoffice-headless-4.0.4.2-9.el6.x86_64
libreoffice-math-4.0.4.2-9.el6.x86_64
libreoffice-impress-4.0.4.2-9.el6.x86_64
libreoffice-draw-4.0.4.2-9.el6.x86_64
libreoffice-pyuno-4.0.4.2-9.el6.x86_64
libreoffice-4.0.4.2-9.el6.x86_64

Answer 2

Installed, everything that is written, it still asks to download in the preview ...
CentOS 6.5 + Release 8.6.0_GA_1153.RHEL6_64_20141215151155 RHEL6_64 FOSS edition. Or put the Network version?