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To remove attachments from a page, go to the "Tools" menu in the upper-right hand corner of the Answers page and then select "Attachments." 
The list of currently attached files will appear. In the right column of every attached file row is a link to change the properties of the attachment or remove it. Click on "Delete" to remove the attachment. A pop-up window will appear that will prompt you to select "Delete" again. Once you select "Delete" from this window, the attachment will be removed and disappear from the attachments list.
Changing Properties of an Attachment
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