Do you want importing to be better in IPAM? Specifically, do you want to maintain your hierarchy with Groups and Supernets? This is the place to tell us more about it. I am happy to talk directly with anyone offline about this as well.
The best posts included details information about what you want and why. The better we understand what you are trying to do, the better we can make this process.
For those of you who are willing to provide example spreadsheets, that is the best way for us to understand exactly what you are trying to do. If you would like to share, then let me know and I will contact you directly offline to get this.
Thanks!