Thanks for dropping by the Community, mark84.
John Pero is absolutely correct. The master admin of the QuickBooks Online company should add you as a user to access and review the file.
Please ask them to follow the steps below on how to do this.
You'll then receive an email invitation with instructions for signing into the company.
For the complete details about adding a user, please visit these articles:
As always, I'm only a few clicks away if you should have any questions. Take care.