I have 32 columns and 10000 more rows. And i tried using xls.core.min.js to import data to sharepoint list. At a time i can import 4000+ only. After that it got aborted. I have checked the below site. and it clearly tells only 15 columns and 10000 records is the maximum limit.
https://www.c-sharpcorner.com/article/reading-a-excel-file-using-html5-jquery/
I dont have access to server for creating excel services to synchronize . I am looking for client side scripting solution. Please help me on this
Thanks in advance