Zabbix - Track, record, alert and visualize performance and availability of IT resources
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Prometheus - An open-source systems monitoring and alerting toolkit.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.