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I had merged two shapefiles.

How to delete a shapefiles which is I give a red sign?

It's like overlapping another shapefiles so I got trouble when I colouring them.

enter image description here

closed as unclear what you're asking by PolyGeo Feb 22 '17 at 6:09

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    You don't have extra shapefiles, you have overlapping data within your layer. You need to edit the layer, select your unwanted feature, and delete it. – Midavalo Mar 29 '16 at 3:55
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I think what you're asking is how you can clip one polygon to the shape of another... if you are, there are a lot of tutorials on how to do that. Here's one to get you started:

Cutting one Shapefile with another?

If you just want to delete your "null" values, (the unnamed Shapefile you circled), you can do that using "Select by attributes" - when you select the feature that has the "null" name, you should be able to delete it in editing mode.

I should mention that it would be very helpful to save another copy of your merged file before you try any of the things I mention above, they will all be considered "destructive" edits.

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