export customizations from autocad 2010 to autocad 2013

[Giovannino60]

to export customizations from autocad 2010 to 2013 I read this guide, but do not understand when I am in the image attached to autocad 2010 if I have to save the file by clicking on point 1 or 2, i.e. main file or new file?
http://exchange.autodesk.com/autoca...ws73099cc142f4875513fb5cd10c4aa30d6b-7db4.htm

 

[GP.]

are the two versions on the same pc?

 

[Giovannino60]

no are on two different pcs.