Sometimes you can be very surprised with the amount of irresponsible people doing some code as vbs scripts, programs or even simple excel macros that can negatively affect production environments.
Last week I got a very simple problem, that can be frustrating for a user. Some external partner of my company created a Excel spreadsheet with a macro that disable all toolbars and hide Excel menus. Basically, the macro cleans all Excel screen, transforming the spreadsheet into something similar to a Visual Basic program.
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