how can I have attachments open automatically, no matter how they were sent?

I get emails with attachments that I often can't open. I am very NON-tech savvy. It seems jpg opens fairly easily. I got a statement that opened easily, but MANY photo attachments with only "?" - no "jpg" - asked me where to file them, how to name them. I don't know before seeing the attachment. It bothers me to have to call service providers repeatedly and ask them to send things in different formats. Google tells me I can set Mozilla preferences to always open automatically, but now, with AI, I got redirected. Your help will be appreciated!