Begin by being on the "Attachments" tab of your report

Click Select to open another window in order to select your attachment file

Identify the correct file on your computer and select that file

Once selected your file will appear here

You may click Remove to select a different file

Click Upload once you have selected the correct file

Please wait for the upload screen to complete

Click Continue once your report has been attached

You may replace the attachment by selecting a new file and clicking Replace