You can download the items listed in your ProductVault to a spreadsheet.
From your MyGS1 account, select My Products (Barcodes), then ProductVault:
Click the button next to the relevant block of GTINs.
Then select 'Download the product list to a spreadsheet':
On the next screen click the green + if you want to add more ranges, then [DOWNLOAD]:
V1.1 10 July, 2020