xlCompare compares 2 workbooks\sheets\ranges. One of them is considered as older version of a document,
and another one - as newver version. Before data will be compared, you should specify where is older data, and where is newer.
xlCompare is present on the Excel 2007/2010 ribbon in the Compare and Merge tab.
In Excel 2003 xlCompare is represented by a menu Compare.
In Excel 2000/XP/2003 xlCompare adds toolbar in addition to menu:
Each item represents a command:
Recent Items(Recent Comparisons) - list of last comprisons. xlCompare remembers 4 last comparisons
and you can repeat them without opening workbooks and selecting data. xlCompare opens needed
files and makes comparison.