Please note that these files are provided 'as is'. My priority is to the students and staff of the School of Earth and Environment at University of Leeds and I am unable to spend much time in supporting external users.
If you are downloading .zip or .7z files, right-click and save to your University OneDrive or a local drive if you are on your own computer, then unzip by right-clicking and extract (preferably with 7-zip) before you use the contents in GIS. Note that 7-zip has proved much more reliable for unzipping files in the past than Extract All in Windows.
The date of latest update is given on the front cover of each individual workbook.
If you are a member of the University of Leeds and wish to have a copy of the data that I provide for the students on my courses to go with the workbook, please email me at c.e.gordon@leeds.ac.uk and let me know which workbook you are interested in.
Since 2020 I have been teaching GIS with QGIS. These workbooks are the ones I am using for my current courses.