QGIS - QGIS is a desktop geographic information system, or GIS.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
GRASS GIS - GRASS GIS is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
Power BI For Office 365 - A quick introduction to using the Power BI business analytics app. A video-based lesson for admins in the course 'Office 365 for Administrators: Supporting Users.'
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.