Description
The Gradebook/Grade Center Download feature is creating tab delimited files with an invalid extension. A warning message (FIle invalid or corrupted / File from untrusted source) will be shown while trying to open the file in Microsoft Excel.
Symptoms
Users will see a warning message while trying to open XLS files downloaded from the Gradebook/Gradecenter:
Steps to Replicate
Log in to Blackboard Learn as an Instructor
Go to Courses (Top Frame tab in Original Experience or Ultra Base Navigation Menu in Ultra experience)
Search for a course (Original View or Ultra View)
In Original view: Go to Course Menu > Control Panel > Grade Center > Full Grade Center
Hover over Work Offline (Top Right corner) and select Download
Make sure not to change the options selected by default (Select Data to Download: Full Grade Center, Delimiter Type: Tab)
Click on Submit
In Ultra view: Go to Gradebook (Top navigation tabs) and click on the "Down Arrow" (↓) button (Top Right corner)
Make sure not to change the options selected by default (Data: Full Gradebook, File Type: XLS, Save Location: My Device)
Save the file
Open the file in Microsoft Excel
The following message is shown when trying to open the file:
"The format and extension of the file don't match. The file could be corrupted or unsafe. Unless you trust this source, don't open it"
Observed Behavior:
A warning message is shown while trying to open Gradebook/Grade Center XLS files (Tab Delimited) in Microsoft Excel
Expected Behavior:
No warning messages should be shown while trying to open Gradebook/Grade Center XLS files (Tab Delimited) in Microsoft Excel
Affected Versions
Learn 3900.34.0
Learn 3900.37.0
Learn 3900.39.0
Target Release
Will Not Fix



