I have went through the below steps:
1 - Exporting KML file from Google earth with some points.
2 - applying Excel to table & the resulted table was appeared in a data frame where a base map is available.
3 - Displaying X,Y Coordinates (taking into consideration that the appeared coordinated system in - display X&Y coordinates window - is the same as that of the data frame witch was:
Projected Coordinate System:
Name: WGS_1984_Web_Mercator_Auxiliary_Sphere
Geographic Coordinate System:
Name: GCS_WGS_1984
4 - Although the similarity in both geographical coordinate system & the projected one between the base map & the resulted event but the resulted event appeared in the ocean below Ghana & Nigeria witch is away from its correct location.
