Although there are a myriad of different types of data sources you can import into QGIS, this guide will focus on the more commonly used data types including shapefiles, csv files, and raster files. For information on obtaining GIS data, view this GIS Data Sources Library Guide. Here's more information on different GIS file types.
GIS data found online is often in a shapefile format. To import a shapefile follow these steps:
If you have a georeferenced image or aerial imagery, you will need to import them using the Add Raster Layer button. To import a raster file, follow these steps:
Once the csv files are formatted properly, you can add them into QGIS.