Items with Warranty, Serial Numbers and IMEI

Let say I have a Mobile phone.

Same Model Number and I have 2000 Pieces to differentiate I can use IMEI number and the Barcode.

I have an excel sheet which has all the IMEI Numbers and Barcodes mentioned.

I need to do a bulk entry of these, and also trace warranties for these.

I have read the below mentioned links -
https://erpnext.org/docs/user/manual/en/stock/item
https://erpnext.org/docs/user/manual/en/setting-up/stock-reconciliation-for-non-serialized-item.html

if there is any one who can direct any article or can give clarification on how this can done it would be great.

Thanks in Advance.

-Vimal

You can use data Import tool.

With Data import tool you can bulk edit items:

Thank you guys, I will try this. . .