If you use one of our apps from within the Shopify admin interface, open it by clicking below

Mixtable Spreadsheet Editor Logo
Mixtable Spreadsheet Editor
Online spreadsheet to bulk edit products, metafields, inventory, prices, tags, orders, and more
Mixtable Excel and CSV Export app Logo
Mixtable Excel and CSV Export
Always-updated online spreadsheet for one-click export to Excel (XLSX) and CSV

If you login to the Mixtable web app with an email and password, possibly because you've been given shared access to a workbook, login below

Mixtable Web App Open Mixtable Web App