Timecode macro

Hi everybody!
Hi have this interesting macro for manage timecode calculations.
It works perfectly, but when I send a sheet to another person, excel requires the macro file for recognise the calculations. I would send my excel sheet whitout send also the macro but I don't know how. It's possible integrate this macro into a excel sheet?
I attached the macro below, please can you help me?

thank you very much

Ps: for open the macro you have to cut off the extension .txt