How to Bulk Update Product Settings in Magento2

When exporting products from Magento to a .csv file, the .csv file doesn't include columns for product attributes associated with Eniture's Modules (example: Freight class, Length, Width, Height, Hazmat indicator, Dropship enable checkbox, Dropship location, etc.)

A bulk update may be done with exception for 'dropship location'.

Add new columns in the .csv exported file for product attributes that need updated.

For example: if you need to mark a list of products to ship as LTL and assign its freight class, and add its length, add 3 new columns in the exported CSV. The header name will be the code of the attributes (which can be seen from the admin panel).

From the example, it will be en_ltl_check, en_freight_class, and en_length; then, add its values according to each product. Once complete, perform the import to bulk update the attribute values.