In some instances when customers have installed Windows 10 and Office 2013 they have found that the macros in Holiday Scheduler have been disabled and in one instance removed. A way of avoiding this is to make the folder in which you keep Holiday Scheduler a “Trusted Location”.
You can do this in “Excel Options” under “Trust Centre”.
The location of “Excel Options” varies depending on which version of Office is being used. In Excel 2007 click on the Office logo and it is at the bottom of the drop down box. In Excel 2010 and 2013 left click on “File” it is at the bottom below Help.