Learn how to save a selection from a GIS dataset to a new GIS file using QGIS with this quick video tutorial.
Saving a selection as a new file is a fairly straighforward process. ย The steps outlined in this GIS video tutorial are:
First, choose how you want to select features from your dataset from the menu:

Next click on the GIS data set in the layers window that you will be selecting features from to highlight it. ย Now make your selection by holdingย down the shift key and clickingย on the features to highlight them.

Once the features have been selected, right click on your datasetย and select the “save as” optionย from the menu.

From the interfaceย select the desiredย file format. ย Under encodingย click the “Save only selected features” box. ย Click “Browse”and designateย the file nameย and location.

Click “OK”ย and your selectionย will now be listedย as a new map layer.
Watch the entire tutorial in the video below:
