Excel Educator workbooks rely on the use of macros – programs embedded within the workbook. Back in the late 1990s and early 2000s there were malicious programs floating around in the form of macros. Microsoft has made great strides to increase security measures which have reduced and nearly eliminated what were termed “Macro Viruses”. It is possible that internet security software within Internet Explorer is having on adverse effect on downloaded workbooks that contain macros.
Because of this, we recommend using another browser such as Firefox or Chrome.