When installing Anaplan XL, you may receive an message. This is because of a faulty InstallLocation registry entry.

Ensure all prerequisites are followed.  

See the Enable ribbon other options article for help.

When you perform certain actions, you get this message:

Could not load file or assembly 'office, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

Download and install these packages:

Alternatively, this error may be a sign that a cloud version of Office 365 with restricted add-in support is installed. Anaplan XL requires the desktop version of Office.

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\

You should back up and then remove the registry entry.