Sophos disabled but still blocking files

Could that be download reputation sending the file for scanning?

If you open up Endpoint Self Help - Enable Debug logging for IOfficeAV:

Relaunch the browser and reproduce the problem.  Then check:

C:\ProgramData\Sophos\Endpoint Defense\Logs\Low\iofficeav.log

What do you see in there?

Here is what it see. It doesn't even have to be at download, it could be sitting there in a folder and it will be removed by Sophos. Here it says manual cleanup required but the file isn't there.

I also cannot download it again even with all of sophos disabled on that endpoint.

I also cannot download it again even with all of sophos disabled on that endpoint.

It says that a scheduled scan completed, that might explain the detections in the list view you are showing.

The value of TaskInfo under:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Sophos Endpoint Defense Service\ScheduledTasks\SophosScheduledScan

will detail the config of the scan if it exists.  You can also check

C:\ProgramData\Sophos\Endpoint Defense\Logs\SophosScanCoordinator.log