Word Documents apparently ‘corrupt’ after upload

Instructors and administrators: If you are uploading documents to the VLE which include links to the Blackboard server (vlebb.leeds.ac.uk), be aware that you must use the correct, secure ‘https’ address:


If you do not use this address, the document may become corrupt.

This is due to a quirk in the hardware between you and the VLE, called a load balancer. These machines ensure traffic is never too high on any of our Blackboard servers, and they also do other work including fixing all insecure ‘http://vlebb.leeds.ac.uk’ references in the data traffic to the VLE. Unfortunately they do this so well they can find and rewrite this text within a document, with the end result that some susceptible formats, like Word files, can become corrupt.

How to avoid this:

  • Use the correct adress: https://vlebb.leeds.ac.uk – The ‘s’ in ‘https’ is very  important.
  • If using Word, accept all changes and turn off Track Changes before uploading
  • In Word, ensure the displayed text as well as the URL is correct for any VLE links you include.

Comments are welcome, however if you need help or advice please contact the ISS helpdesk on tel (0113) 343 3333, or helpdesk@leeds.ac.uk.

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