When working with large SHP boundary files, exporting coordinates of specific district boundaries to TXT is straightforward in QGIS. Here are three approaches:

Method 1: GeoJSON Export

  1. Open SHP file and select target feature

  1. Right-click layer → Export → Save Selected Features As

  2. Set format to GeoJSON and specify output path

  3. Open exported GeoJSON in text editor and copy coordinates to TXT

Method 2: AS_XY (Limited Compatibility)

Note: Failed on macOS QGIS 3.28 LTS

  1. Follow Method 1 steps
  2. Set format to CSV with geometry option AS_XY

    Result: Only exports attribute table without geometry

Method 3: WKT Export

  1. Follow Method 1 steps

  2. Set format to CSV with geometry option AS_WKT

  3. Output contains Well-Known Text representation:

    Suitable for coordinate extraction but requires parsing