Rhino 5 cannot export to other format

I only have export to rhino 2, 3, 4, 5 options, which is pretty useless. It was not like this before. I don’t know what went wrong.

Export and Import in formats other than the Rhino ones use Plug-Ins. Run PlugInManager and check that the plug-ins are enabled.

For example:

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David,
Thank you! You are right. I don’t have any of the circled plugins, any more. How to install them back?

You probably want to try to reinstall Rhino…

That bad?! Ok, maybe this is a “shut down and restart” issue. Thank you, will try.