Hi
NI offers an "Report generation toolkit". You get some VI's with this toolkit and so you can directly create your reports from LV.
Another possibility is the communication through ActiveX. There is a nice link with application notes and LV examples for that:
http://zone.ni.com/devzone/devzone.nsf/webcategories/C3E56C69D399361E86256AB7006A9149?opendocument&node=DZ53003_US
Regards,
Luca