I am a new to the field of GIS-Software. So i hope for your patience. English is not my native language so sorry for that too ;).
My overall goal is to export a DXF-File with just the special objects with a special attribute for importing it into Vectorworks.
I have imported a shapefile in QGIS with the "add vector layer feature". I have a really big file with around 650.000 objects/features. I want to delete a lot of them with a special attribute in the attributes table with editing mode. I tried with QGIS and Arcgis and both are using 100 % CPU for a long time (2-5 hours), and nothing happens. I did that some weeks ago with that procedure i described above but now it doesn't work anymore because both programs "die on it".
What am I doing wrong? Is there another way?