

But the prerequisite is that you need to save the Outlook attachments to local disk at first. Selecting it means changing the default program. After choosing the program, don’t forget to select the option “Always the selected program to open this kind of file”.Next a new window will show up, in which you can select one program from the “Other Program” list or click “Browse” button at the lower right corner to choose your desired program.Right click on it and select “Open with” from the right click menu. Then close Outlook and find the attachment file in the set location.In the new window of “Save Attachment”, you can choose a preferred location to store this file and assign a new name to it. Just right click on the Outlook attachments and select “Save as” from the context menu. To begin with, you need to save the target Outlook attachments to local.

Finally I have no choice but to change the default programs in Windows Control Panel. At that time, I tried to open a spreadsheet attachment that is usually opened by Excel application, but WordPad showed up instead of MS Excel. I have ever encountered this issue as well.

#How to set default program to open attachments in outlook pdf#
In this case, you have to change the default program to open the pdf attachment. When you double click on a pdf attachment, Photoshop shows up and attempts to open the pdf file.
