How to bulk upload data as form data with _id included

I Am designing a form where I am creating a country survey where i am adding country information overtime which gives me a _id every-time which I am referring to another form to sort of create a relational data. Now there are many country information’s I need to add and it is not feasible to entry these data manually. So my question is is there a way that I can bulk upload data which will automatically count as bulk submissions.

Are you creating this form in XLSForm?

yes I am. Please help me find a work around on this

@Nafisa_Tasnim_1143, the _id is an id provided by the system. The client has no access to alter the same. But you could use the pull data function or the Dynamic Data Attachment feature to upload the relevant portion to the server in advise which you wish to use it for other forms.