To export inventory of an item, you need to export that on each location.

1. go to the item

2. click 'Export History'

3. when the file completely exported, download the file

The file looks like this

On hand: stock on hand

On hold: item that is reserved for order

ATS: Available to sell, equal to quantity of stock on hand minus quantity that is reserved for orders

You can get inventory of an item in a location from location view.