Internet is mandatory to access QB Online. You can prepare data in XLS and import it in bulk when internet is available.

Hi christy-allameri,

QuickBooks Online (QBO) is a web-based program. That means, it's a cloud-based program that can be accessed through the internet.

We automatically back up your data using advanced, industry-recognized security safeguards to keep your financial data isolated and protected.

To know more about this, check this article: Do I need to back up my data with QuickBooks Online?.

Leave a comment below if you have any other concerns. We're always here to help you.