GST Rfd 01 due to inverted duty Facing issue

Hi all respected sir,

I am facing some issues at the time fill Rfd 01 statement 1a. I have 3000 transactions in the particular fy. Year so at the time of copy paste date in template and after validation the sheet the template show date errors in some rows please guide how can i paste date on statement 1a.

Thanks
Ashutosh