How to delete imported list?

I have A list, that containing xx,xxx number of subscribers, then i imported 1x,xxx subscribers into same list.. I notice that click/open rate has been drop so i think i want to delete these 1x,xxx subscribers

But how to delete them since it mixed with all the leads in a list?
 

frm.mwz

Well-Known Member
I have A list, that containing xx,xxx number of subscribers, then i imported 1x,xxx subscribers into same list.. I notice that click/open rate has been drop so i think i want to delete these 1x,xxx subscribers

But how to delete them since it mixed with all the leads in a list?
list
subscribers
bulk action from source
;)
 
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