INFO [org.openide.text.CloneableEditorSupport]: Outer callstack
org.openide.text.DataEditorSupport$Env$ME: The file gis.csv seems to be too large (29 Mb) to safely open. 
Opening the file could cause OutOfMemoryError, which would make the IDE unusable. Do you really want to open it?
        at org.openide.text.DataEditorSupport$Env.inputStream(DataEditorSupport.java:879)
        at org.openide.text.CloneableEditorSupport.loadDocument(CloneableEditorSupport.java:2114)
        at org.openide.text.CloneableEditorSupport.access$2600(CloneableEditorSupport.java:129)
        at org.openide.text.CloneableEditorSupport$Listener.run(CloneableEditorSupport.java:2953)
Caused: org.openide.text.CloneableEditorSupport$DelegateIOExc: The file is too big. 31039690 bytes.
        at org.openide.text.CloneableEditorSupport$Listener.run(CloneableEditorSupport.java:2956)
        at org.openide.text.CloneableEditorSupport$3.doRun(CloneableEditorSupport.java:726)
        at org.openide.text.CloneableEditorSupport$3.run(CloneableEditorSupport.java:693)
        at org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:317)
        at org.openide.text.NbDocument.runAtomic(NbDocument.java:437)
        at org.openide.text.CloneableEditorSupport$3.doRun(CloneableEditorSupport.java:703)
        at org.openide.text.CloneableEditorSupport$3.run(CloneableEditorSupport.java:693)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)
Caused: java.lang.Exception
[catch] at org.openide.text.CloneableEditorSupport.openDocumentImpl(CloneableEditorSupport.java:935)
        at org.openide.text.CloneableEditorSupport.openDocumentImpl(CloneableEditorSupport.java:917)
        at org.openide.text.CloneableEditorSupport.openDocumentCheckIOE(CloneableEditorSupport.java:897)
        at org.openide.text.CloneableEditorSupport.openDocument(CloneableEditorSupport.java:882)
        at org.openide.text.DataEditorSupport.openDocument(DataEditorSupport.java:588)
        at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView.getSourceDocument(EditableDiffView.java:1051)
        at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView.setSource2(EditableDiffView.java:1083)
        at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView.access$600(EditableDiffView.java:114)
        at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView$1.run(EditableDiffView.java:267)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646)
        at java.awt.EventQueue.access$000(EventQueue.java:84)
        at java.awt.EventQueue$1.run(EventQueue.java:607)
        at java.awt.EventQueue$1.run(EventQueue.java:605)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:616)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)