Please visit Quick Update Translations: User & Configuration Guide to view the User & Configuration guide. This guide will walk you through the required steps to configure and start with the Quick Update Translations.
P.S. Discover Quick Update Translations, the simple way to update Labels and Translations in just a few clicks. Find it on AppExchange: https://appexchange.salesforce.com/appxListingDetail?listingId=fa9afbfe-74ff-4027-ac32-2cdfd58184d3