We are aware of some customers experiencing issues opening Forbury models in recent versions of Excel.
Affected Excel versions we are currently aware of:
Version 2103 (Build 13901.20312)
Version 2103 (Build 13901.20336)
Version 2103 (Build 13901.20400)
We will update this issue with more details as we have them.
If this issue is impacting you, and you need immediate resolution, a tested workaround is to roll-back your version Excel to before any of these affected versions.
For additional assistance, please don't hesitate to contact to support (https://support.forburyproperty.com/hc/en-us/requests/new