For some reason, when you open a .kml file with Google Earth, the little arrows seem to swing around in unison sometimes as you zoom in and zoom out.
if you need to see the vertical profile, as in the file below, just right-click the kml file on google earth, properties, stye/color tab, click share style button. then on altitude tab click the checkbox 'exntend to ground'. after that, back to style/color tab and change colors etc. press ok to exit. Finally tilt the image, from right hand side command bar (top) top arrow. HTH
for the additional ponts from fr24 xls file. you must create the points and then 'extend to ground' in altitude tab.
UCFM-TK6491-path.jpg