If you switched from the classic Outlook for Windows or from the Mail app, you'll have the option to migrate some of your settings, which you can learn more about here. Preview an attachment File attachments can be viewed in the Reading Pane or in the body of an email message without opening another program: Right-click the attachment and select Preview. Was this information helpful? In reply to Dee DeeMurry's post on January 9, At bottom right is the Zoom slider to increase the viewing size inside the Reading Pane.
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