About how to turn on add-in

[Brook95]

unable to access the excel features 

[#2]

@Brook95 

Which features and which version of Excel?

[#3]

@Brook95which Excel features are you trying to access?

You can find Excel Add-ins by navigating to the File tab > Options > in the Excel Options dialog box choose on the left side category Add-ins > in the bottom of the dialog box then select to manage Add-ins and click on the Go button.

[#4]

@Branka Bradule 

That's correct if only such add-ins exist for available Excel version.