Creating Custom Labels from SpreadSheet Data Set

I need to create labels in Writer from an undefined vendor in LibreOffice. Vendor of my labels give me a template as a doc format. So what i need is to fill in that template with label data defined in a spreadsheet. For this purpose, I first create a database from spreadsheet. But in Writer, when i try to enter each row data in database as label data automatically, I cant succeed. I can fill only first row data. And what i do in first label doesnt reflect to other lables at all. I dont see any synchronize option. I will appreciate much any guidance about this issue.

Thanks in advance.