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I have been using Argis 10.1 and been able to convert polygon m to polygon shapefiles. I would like to do this with QGIS but I am having difficulty in finding the correct tool to do so.

Please Help

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I imagine you want to convert Multipart Shapefiles to Singlepart Shapefiles.

The tool you want is: Vector>Geometry Tools>Multipart to singleparts

If this is not the case you need to clarify your question. How do you do it in ArcGIS?

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If you have QGIS installed you may use OSGeo4WShell for this. The command would be something like this:

ogr2ogr -f "ESRI Shapefile" C:/Temp/countries.shp C:/Temp/countriesZM.shp -lco SHPT=Polygon

AND to convert to ZM it would be:

ogr2ogr -f "ESRI Shapefile" C:/Temp/countriesZM_2.shp C:/Temp/countries.shp -lco SHPT=PolygonZ
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MMGIS's Geometry Convert can also help you drop the m and z and generate a new shp file.

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