Compare the best free Microsoft Excel alternatives for 2026, including features, pricing, pros and cons, and use cases for each spreadsheet tool.

SpaceXAI has launched a free Microsoft Excel add-in that lets professionals analyze data, build complex formulas and execute scenarios using plain language.

SpaceXAI launches its own Grok add-ins for Microsoft Excel and other Office apps after other AI vendors see great success.

What are Excel add-ins? Excel add-ins (also known as Excel add-ons) are applications that extend the usability of the Microsoft Excel spreadsheet software. These tools will help you find Excel ...