How to avoid specific files from getting added to Attachment viewer

We all love to use the 'Attachment viewer' where all the file attachments are readily available. However sometimes unwanted files get added there automatically. You can restrict certain files getting added to the attachment viewer using Filters. 

You can create a filter with the specific conditions, for which you do not want the attachments to be added to Attachment viewer. Ex: from specific senders or with specific attachment types etc. Then in the actions, select 'Do not add attachments to the Attachment viewer'. Once done the attachments of emails which match the given conditions will not be added to the attachment viewer. 

You can also explore other filter options for various other such automated actions for incoming / outgoing emails.