You cannot set or manage the macro security level on someone else's computer, they have to do it. Normally, you/they would set it so that the user has to enable or "authorise" the macro(s) to run.

If you are using a much older version of Excel, you may find that it cannot cope with the design, features and the VBA code that has been used.

For example, from Excel 2007, there are many additional functions, such as COUNTIFS and SUMIFS. And things like Conditional Formatting are much more sophisticated. Not to mention something as "simple" as the increased level of nesting in an IF formula.

So, it very much depends on what you mean by "awesome" but I suspect you may have issues.

Regards, TMS