Open Visual Studio 2013> Select Option > App For SharePoint > OK right click on on Newly created Solution > Add New Item Select ribbon Option > Click ok Modify the element .xml based on your requirement <?xml version="1.0" encoding="utf-8"?> <Elements xmlns="http://schemas.microsoft.com/sharepoint/"> <CustomAction Id="23527d0d-e924-4838-94be-ee2e1a347210.Download Bulk Files" RegistrationType="List" RegistrationId="101" Location="CommandUI.Ribbon" Sequence="10001" Title="Invoke 'Download_Bulk_Files' action"> <CommandUIExtension> <!--...
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