Hi there, accounts394.
We can still export GST Reports into an Excel file. You'll want to zoom it out to make sure that you'll see the whole page. Here are some of the articles you'll want to check for more details:
In addition, we can perform some troubleshooting steps to see if this is just a browser error. Start by using an incognito window and pull up the report from there. Let's also clear the cache cause it can lead to unusual behavior in QuickBooks Online.
Lastly, make sure that you're using an updated browser.
I'll be here if you need anything else. Stay safe!