I developed a little program to work with polar databases .
Its called PolarStudio and can be downloaded fromhttp://www.tecepe.com.br/nav/vrtool/PolarStudio.zip
I included a set of polars for J/24.
Oh yeah... And you can use it to import VR
use menu option >File>Import..
files vpp_1_*.csv at once:
"vpp_1_1.xml", "vpp_1_2.xml", "vpp_1_4.xml", "vpp_1_8.xml",
"vpp_1_16.xml", "vpp_1_32.xml", "vpp_1_64.xml"
Than use File> export to VRTool.
This will write the polars in vrtool merged format.
Individual Polar lines can be edited with the mouse
by moving individual points.you can create or delete
lines or sails.
Also check the external resources in this page:http://www.tecepe.com.br/nav/vrtool/links.htm