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This question already has an answer here:

Rookie Question! I have a shapefile in QGIS 1.8.0 of a country with 20000 divisions. I need the area of each division, but this is not a given attribute. When i click on a district, the "Identify Results" panel shows a "Derived" value for the area of each district along with the feature id. Can somebody tell me how I could extract these area values to a data file? Thanks!!

marked as duplicate by Ian Turton Sep 9 '13 at 13:02

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • follow the steps in the linked question above to create an area column and then save the shapefile (with a new name). – Ian Turton Sep 9 '13 at 13:03
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I believe the answer you seek lies here....in the add geometry column.

http://pvanb.wordpress.com/2012/03/16/adding-geometry-columns-to-attribute-table-of-vector-map/

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