What to do with VBA when the person in charge has left and no one knows how it works?

When organizing internal systems and folders, there are files you almost always encounter.They are "Excel macros (VBA) where ...

Checking Excel macros before Windows VBScript is disabled by default — Two ways they stop working and other things to check

Microsoft has announced that it will phase out VBScript in Windows in three stages. It is currently enabled, but it will be ...