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I'm new to GIS. I have a shapefile (shp) that I need to add lat/lng coordinates too.
I used QGIS to open the file and selected:
Processing->ToolBox->QGIS geoalgorithms->Vector geometry tools->Extract nodes to add nodes to the file. I set the coordinate system to WG84G, when I go to add the $x coordinates I get output of 585292.76.
I believe it's the coordinate system not being correct but not sure which one I should be selecting.