Navigate to the “Products” page and click on the ellipses at the top right-hand corner of the page, then click on the “Up arrow” 

Click on “update inventory,” then select the location you would like to update.

Click on the “browser,” then select the proper file.

On the page that pops up, click “next” on the top right-hand corner.

If editing is required, click on the small icon by the last column and edit as necessary. Click confirm update when done.