I'm working with OS windows 7 and using ArcGIS 10.2 and I have a point shape, which I must extract elevation for every point in it but the only useful data is a contour line shape. Not sure if it's useful but I need your help once again to lead me on how do I extract the data I need from it.
If you have spatial or 3D analyst, you can interpolate between your contour lines, using topo to raster or TIN (TIN is only available with 3D analyst). Then you run "extract value to point".
If you don't, I recommend you to try with another software (e.g. QGIS, GRASS...), but if you need a quick and dirty solution you can use spatial join to extract the elevation of the line that is closest to your point.