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Log in to D2L with a guest (D2L-Specific) account.
Important Notification (posted 3/4/2014)
Files opened in D2L's Content area and the Dropbox may not load in the D2L Document Viewer and instead display an error message.
The workaround is to select the "Download" option at the lower-left of the Viewer.
D2L and the LearnUW service is actively working on a resolution to this issue.