Can I send messages without saving numbers?

Hi Team,

I want to use WhatsApp Software, before that i want to know Can I send messages without saving numbers?

Hello,

Could you elaborate your query?

I have a data in Excel sheet, approx. 2-3k

Of all contacts i didn't have names of them, is it manadatory to add their names?

No, without name you can send messages just add that file in the panel