API Workflows and Zapier

I’m really new to web hooks and it’s concept. But I’m trying to insert big amount of data entries to my data base using Zapier.
I’ve successfully connected my worksheet to zapier. but for some reason it only reads 3 rows, and I have a lot more than that. Even though it reads only 3 Rows, it’s also giving me a choice so I can’t choose all.

My goal is to connect my Data Type to the spread sheet, insert all the current rows as entries into the database and every time I add/edit a row, it automatically configures it at the backend.

Here are some screenshots thatI hope will give you a clear look of my steps.