Just go to Products, tick all the products you wish to download and then go to Actions -> Download . Once you do that, it will take you to the next page where it asks you what would you like to download on your spreadsheet (i.e Price, QTY, Categories, Postage options, Variations, etc..). You can either tick them all or just the ones you need only. Click Export when done.
Now that you’ve downloaded the spreadsheet and made the necessary changes you can upload it back.
Just go to Products -> Product Upload, choose the spreadsheet file from your computer you want to upload and press Continue. Additionally you can download our examples of spreadsheets as guides on knowing how to correctly map your spreadsheets so that Ad-lister reads every value.
Now you just need to make the necessary adjustments to the settings and you’re all set. We highly recommend keeping a backup file of the spreadsheet in case anything goes wrong and also test the spreadsheet first before making the permanent changes by pressing the Test button prior to Update/Import Inventory.
Once all these are done and everything worked correctly, check some of the products to make sure the changes have been made and just Revise them with the correct option. More info about that here.