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Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
draw.io - Online diagramming application
Apple Numbers - Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.