Quote Originally Posted by Paleo
Another limitation is on dates calculus. Excel on Windows has a range between 1/1/1900 and 31/12/9999 while at Mac its from 1/1/1904 through 31/12/9999. Not that this may impact too much but its always usefull to know.
the date difference is not a vba issue, rather it is a difference in the way apple and msft handle dates.

likewise, there are differences in the coded representation of certain characters, e.g., as i recall, breaking space.

also, the separator used in paths.

one can conditionalize vba code to asccount for some differences, such as those i listed supra. for some others, i guess one is outta luck.