How to upload custom excel and update Employee Checkin details

I have custom excel sheet with details of biometric attendance with dates from 25 of pervious month to 25 of current month in the format attached.

I want to upload this in Employee check-in

doctype.

How to do this Please help… Employee can be mapped with attendance id

File is attached

goto data import tool and download the template for attendance then fill the data accordingly and upload the file

Actually, I want to do uploading of this excel only and via python or js file want to internally change it according to fixed template of erpnext.

Or
Changing the template accordingly and processing it with same.

Anyway that is easy to implement?

this is officially not right i guess?

Can I convert this Excel to a template excel in erpnext via any custom program?

do you know how to use data import tool

yes i know