If your Outlook Web App looks like the image below , you’re using the light version of Outlook Web App. This could be because you selected the option to use the light version, or because you’re using a web browser that doesn’t support the standard version of Outlook Web App.
You can use Open as Web Page or (Open in browser) to convert and open several common types of attachments as web pages.
I don't want the light version of Outlook Web App. Where is the standard version?
The light version of Outlook Web App is simpler than the standard version in both appearance and function. In addition, because it is HTML-based, the light version works better with some assistive technologies like screen readers.
If you didn't choose the light version, just sign out and then use a supported browser to sign back in.
If you did choose the light version from an option, here's how to get back to the standard version of Outlook Web App:
In the light version, go to Options > Outlook Web App version.
Clear the Use the light version of Outlook Web App check box.
Sign out of the light version, close your browser, and then sign in again using a supported browser. You may need to close all open browser windows before you sign in again.
Open the attachment in its original format
To open an attachment in its original format, click the link at the top of the web version of the attachments.
Save an attachment you've opened as a web page
To save an attachment in its original format, right-click the attachment title at the top of the web page and select Save Target As.
Choose where you want to save the attachment.
Print an attachment you've opened as a web page
To print an attachment that you've opened as a web page, right-click the attachment title at the top of the web page and select Print Target.
What else do I need to know?
Attachment types that can be opened as web pages include:
Word: .doc and .docx
Excel: .xls and .xlsx
PowerPoint: .ppt and .pptx
Adobe Acrobat: .pdf
What if I want to know more?
For more information about working with attachments, see What about attachments?