Open several file attachments, of the same or different types, in the same email message by clicking the inverted triangle at the far right of the attachment summary bar.

What files can you open in Gmail? Depending on which platform you use with Gmail, you can open a range of attachments without downloading them. However, you can't open some attachment types.

If you use Yahoo for your email account, you can open attachments easily, and Yahoo will even scan attachments for you to check for viruses or potential threats to your system.

If you received this file in an email attachment and tried to open the document, you would need to have a program that can read files created with the .doc extension.

By installing Attachment Icons for Gmail, you'll be able to quickly identify if it's a PDF, MP3, ZIP, or any other common file type attached to your e-mail without even having to open it.

Mac 911 How to open a stubborn email attachment in Mail on your Mac Apple Mail may wind up with broken permissions that prevent you from opening files you should have access to.

For example, while you can open most image types in Gmail, there are others you can't open. Files in an archive (such as .zip) won't open in Gmail even if the file inside is compatible.