Convert GeoTiff (Bathymetry and Topography) to XYZ using QGIS HD

Global Relief Model (Bathymetry and Topography) https://www.ngdc.noaa.gov/mgg/global https://maps.ngdc.noaa.gov/viewers/grid-extract/index.html https://download.gebco.net/ QGIS https://www.qgis.org Recommended Book: Ocean Wave Data Analysis Introduction to Time Series Analysis, Signal Processing, and Wave Prediction. Order at Amazon: https://www.amazon.com/dp/0692109978 Principles of Data Science with Python Introduction to Scientific Computing, Data Analysis, and Data Visualization. Order at Amazon: https://www.amazon.com/dp/1735241008 Fundamentals of Data Science with MATLAB Introduction to Scientific Computing, Data Analysis, and Data Visualization. Order at Amazon: https://www.amazon.com/dp/1735241016