extension

we are use opencart 2.2.0 and i want to install extension but modual list not show install extension .plz help me .

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Sorry, but your post makes no sense!
You have to load Extensions via the integrated Installer (see Menu).
And if loaded then, you have to refresh the modifications (depends also n the extension itself).

And if both steps are successfully applied, you can see the Extension based on his type either under Modules, Payment, Shippign and so on ..