Google announced that a new plugin has become available in G Suite, connecting Salesforce to sheets and vice versa. The new tooling is great to handle bulk upload requests. For instance, you can easily update pipeline data in Salesforce by extracting them to sheets, manipulate the data and then upload them again to Salesforce.
This new functionality is made by Google Cloud and presented as an add-on in G Suite Sheets and has currently Beta status. AS Gioogle Admin you can provide access to your users. Please note, that if you have add-ons disabled for your domain but want to allow your users to use this specific add-on, you can whitelist this add-on.