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Kutools for Excel - A handy Microsoft Excel add-ins collection to free you from time-consuming operations.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Excel Dashboard School - Free Excel add-ins and tools on Excel Dashboard School. Boost your work productivity and save your time! No trials, 100% power!
Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
UpSlide - UpSlide helps you produce high-quality reports and presentations faster in PowerPoint, Excel and Word. Save up to 12h each month with just a few clicks!