How do I make sure I have the latest version of Openbox?

In the “Openbox” ribbon in Excel, there is a “Check for new version” button. If you click it, Openbox will either tell you that you have the latest version, or tell you that there is an update and offer to install it.

Note that you need to be connected to the Internet to receive updates. If you have issues with receiving them, please check your connection and try again.