Restart Computer If you are unable to open PDF attachments in Yahoo Mail, first try restarting your computer or device.

How to Attach EXE Files on Yahoo. Yahoo! Mail allows executable files as attachments in email messages; however, depending on the recipient's email service, the user may or may not be able to ...

Yahoo has launched an update to Mail for the desktop that lets you view both your email and attachments side-by-side — ending the hassle of switching back and forth between the two.