File TypeExtensionUse CaseDescription
Keyhole Markup Language.kml, .kmzOverlaying geographic dataXML-based format for expressing geographic annotation and visualization
Shapefile.shp, .dbf, .shxVector map layersGeospatial vector data format for GIS software
GeoJSON.geojsonLightweight vector dataJSON-based format for encoding geographic data structures
GPS Exchange Format.gpxGPS data interchangeXML schema for describing GPS data like waypoints, routes, and tracks
Comma-Separated Values.csvTabular data importPlain text format for storing tabular data, often used for GPS coordinates or metadata
GeoTIFF.tif, .tiffRaster map layersTIFF variant enriched with GIS-relevant metadata, used for satellite imagery and terrain data
MBTiles.mbtilesOffline raster mapsSingle-file database format for storing raster map tiles for offline use
PDF.pdfMap printouts, documentsPortable Document Format for preserving document layout and graphics
Text.txtNotes, metadataPlain text format for simple notes or metadata related to map features
ZIP.zipData compressionArchive file format for bundling and compressing multiple files together
JPEG.jpg, .jpegGeotagged photosLossy image compression format, often used for geotagged field photos
PNG.pngOverlay graphicsLossless raster graphics format, useful for logos, icons, and map overlays
GIF.gifSimple animationsGraphics Interchange Format, supports simple animations like blinking markers
MP4, AVI, MOV.mp4, .avi, .movGeotagged videosVarious video formats that can be geotagged and associated with map locations
– Introduction to QGIS
– Why use QGIS?
– The QGIS website
– Downloading QGIS for your OS
– Installation

– The Layers List
– The File Browser
– The Map Canvas
– The Toolbar
– The Menus
– The Processing Toolbox
– Working with a DEM layer
– Adding layers to the map
– Styling layers: basic symbology
– The “Identify Features” tool
– Changing the projection
– Changing symbol type
– Changing colors
– Changing opacity
– Removing stroke
– Applying changes


– Styling based on data values
– Working with numeric data
– Adjusting graduated symbology
– Styling based on stump diameter
– Changing the size of symbols
– Viewing and adjusting symbol levels
– Removing unnecessary layers
– Editing features and saving changes
– Adding labels to the map
– Different labeling options
– Editing vector data
– Creating a new polygon layer
– Adjusting vertices


– Buffering vector data
– Setting buffer distance and other options
– Running the buffer analysis
– Counting points within polygons
– Setting up the count points in polygons analysis
– Running the analysis and viewing results
– Working with raster data
– Importing DEM data
– Styling the DEM layer based on elevation
– Final thoughts
– Additional resources