LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
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.
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
Prometheus - An open-source systems monitoring and alerting toolkit.