How to open files from Safari without having to save them to Mac I recently changed from using a Surface to a Mac and I am having a hard time figuring out how to open files, let say from my gmail, without having to save the file on my Mac. With Microsoft, when I click download it prompted if I wanted to just open the file, Save or Save as... I can not figure out how to get those options on my Mac. Everytime it just prompts to save the file, but no to just open it without saving it first.
That option is located in the Safari Preferences dialog.

in Safari go to the Safari menu and select Preferences.

If it is not already selected click on the General icon in the top left of the Preferences dialog.

At the very bottom there should be a checkbox (likely unchecked) that says "Open "safe" files after downloading." Check that box and you should be good to go.