For a video overview on how to Upload Inventory List in Bulk using a CSV file, please see here:
To upload a bulk list of Inventory Items, please start by clicking 'Inventory' from the home-port page.

At the top right, there is a 3-dot vertical menu, click on the there, and then select 'CSV Upload'. eg.

Enter the Inventory List name, in the Title section.
Prior to importing a CSV file, please make sure it copies the layout of the example below and is saved as a 'CSV' file.
Click 'Import File' then Upload.

Once you have added your CSV file, a prompt will appear along the top of the page. If it reads the same as below, click 'Import File' on the far left side.

Once you have updated your CSV file, you can return to the Inventory section to review your items.

Note: If you wish to add details like Costing Price, Comments, Attachments, or multiple Categories, you will have to edit each individual Inventory Item.