When opening SimQuick a window opens where you can choose to enable macros.
If Excel does not allow you to enable the SimQuick macro do the following:
In Excel, look under Tools / Macro / Security / Security Level.
If the level is set at high, change it to medium.
When opening SimQuick a message bar should appear at the top of the
spreadsheet saying “Security Warning; Macros have been disabled; Options...”
Click on “Options…” then “Enable this content.”