Step 1:
Select the Import stock tab
Select Field 1, 2, 3 (recommended is Sku, Stock Qty, Stock Status), Stock Delimiter (recommended is ,) and Stock Enclosure (recommended is “).
Step 2:
State your quantities as per format below in the blank section.
The example below could be copied / pasted in the blank section (make sure to change values!):
21-114,100000,In stock
21-111,520,Out of stock
21-109,350,In stock
21-103,55,In stock
21-83,680,In stock
21-49,365,Out of stock
In case you have > 100 entries, you can use this CSV template file and update using Import Stock File button.