How to add vector layer in QGIS?

To add a vector layer in QGIS, follow these simple steps:

Open QGIS.
Click Layer → Add Layer → Add Vector Layer.
Or click the Add Vector Layer icon on the Data Source Manager toolbar.
In the Data Source Manager window:
Set Source Type to File.
Click Browse ( … ).
Select your vector file, such as:
Shapefile (.shp)
GeoPackage (.gpkg)
GeoJSON (.geojson/.json)
KML (.kml)
Click Open.
Click Add.
The vector layer will appear in the Layers Panel and be displayed on the map canvas.
Click Close to exit the Data Source Manager.
Keyboard shortcut
Press Ctrl + Shift + V to open the Add Vector Layer dialog (on many QGIS versions).
Common issues
Layer not visible: Right-click the layer and choose Zoom to Layer.
Missing .shx file (Shapefile): Recreate the missing index or obtain a complete shapefile set (.shp, .shx, .dbf, and .prj).

Видео How to add vector layer in QGIS? канала RS and GIS with Dr. Manoj