hi
@beginner, not sure if I'm the most qualified to answer, but from my experience, XML importing requires SuiteScript. Netsuite natively supports CSV importing for vast amount of record types and select fields, but XML importing will rely on Javascript parsing.
If i could point you in a general direction, I'd start with the
Netsuite SuiteScript API PDF file , specifically at the /xml section, as that details methods on how to parse XML data into Netsuite-readable string. If your name is as literal as it appears, you might need to read up a crash course on Javascript and Suitescript, to which there are plenty online. Youtube and Google will be your best friends alongside this Slack group, though I wouldn't always expect a response for every question you post here.
This is just a general take though, hopefully someone with a little more know-how will drop their insights on this thread too. I wish you all the best.