Insert bulk data to collection

Hi

I have an excel table which I use vba code to send 300 rows and insert them to my wix collection.
I use get method in vba
And http request in wix that get the data as 1 long string, split it and insert it to my data.

Because its a lot of data, I use a for loop of 10 rows every time.

Is there a better way to do it?
Basically I want to sync my excel data with wix collection data.

This could be interessting for me.