[Evolution] Q: What is the difference between *.vcf files and user-cal.vcf?

[Levent Guendogdu <levomat gmx de>]

Hi Evo Team,

I noticed that Evo has a function to import vcf-files. Import 
user-cal.vcf from gnome-calender fails, because there seem to be some 
unsupported tags. What is the difference between vcf-files in general 
and the gnome-calender vcf file? Is there actually some converter to 
make it possible to import my calender file?

Thanks everyone!

Bye,
 Levo.