How to remove duplicates with items exported Bitrix?

On the website there are products with different sizes but same name. How to eliminate duplicates when exporting? For example, make a group by name+price or just the name
March 19th 20 at 08:45
1 answer
March 19th 20 at 08:47
Solved a similar problem by creating an export file.
Then, the usual set of conditions removed unnecessary data.
You have duplicated items or trade offers?

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