
Another cause of similar errors when exporting HardTrack Project to Excel, is the Network Security Policies on the output folder from HardTrack, may block HardTrack from creating the Excel Workbook at the typical location of Documents that are synchronized to a network folder.
You can change the location that HardTrack uses to export its reports by opening HardTrack and clicking on Options, Display and set the Report Location Manually:
Please remember to include the "\" at the end of the Report Location and click OK to complete the update. You can also click on Set Report Location to browse to the folder that you would like to use