Microsoft Office Preview on Android-x86 on VirtualBox is a no-go

Microsoft Office Preview for Android became available in the beginning of December 2014. It works nicely in my Nexus 7 wifi (2012) tablet. See here.

But not all people have a suitable Android 4.4.x tablet with 7"-10" screen. I was wondering if project "Android-x86" could help.  After installing Android 4.4 from ISO-image on VirtualBox I must say it's a no-go :( . See my screenshots below. Project Android-x86 version of Android is not on the list of supported devices what comes to Microsoft Office for Android. Bummer.

Screenshot says: I am a tester

Screenshot says: my device is not compatible