How to import product properties into Bitrix 1s?

Question

1C-Bitrix

Please tell me how to import a large number of product properties into Bitrix 1s. What would not be the hands of each new property to add.
When importing via csv, xml, you need to add matches. And in order to add these matches, you must first add them to the properties of the goods. Or am I wrong?

Answer 1

The recipient is clear, but the source?
Try XML

Answer 2

you can import via csv or xml

Answer 3

simple script. Parse csv with properties and add in a loop
CIBlockProperty::Add

Answer 4

And only properties can be imported somehow? from one site to another, similar. Those. There are a lot of products, and I only need the properties of the products.