How do I delete items from my attachment file?

how can you delete jpg,and items from the my attachment section of yahoo mail once you have opened an email but did not scan and save it to the computer just opened the image. when you put a check in the box in the my attachement section it doesn't give...

after opening my yahoo page,at the left bottom i see a file my photos and my attachment. how can i delete the pictures and the attachment from these files

I did not realize that opening an attachment will automatically save it into a attachment file. Now I want to delete all my SAVED attachments and can't figure out how, so feed back would be greatly appreciated here.

Seems when I want to delete a number of things on "Favourites" I have to delete them one at a time which is so timeconsuming. Is there a way to delete a number of items on Favourites or Bookmarks?

I've tried a left click, but that doesn't work either. If I want to view the attachments, I HAVE to "download" them. Or is there another way? Will I have to install them on the computer in order to delete?

i am wondering how to delete a file that is 91mb from my outlook outbox. it wont let me delete it at all. what should i do?

How can I delete Message View, Photo View and Attachment View one at a time?

I sent a word document and then deleted the file. Is the attachment deleted now as well?