How to Use Google Gemini AI in Docs, Sheets & Slides: Complete 2026 Guide

Google just shipped the biggest update to Workspace since it rebranded from G Suite. And this time, it's not a chatbot sidebar you'll ignore after a week. The March 2026 Gemini Workspace update rolls AI directly into the tools 300 million people already use — Docs, Sheets, Slides, and Drive. We're talking doc generation that pulls context from your Gmail and Drive simultaneously, spreadsheet cells that auto-populate with live web data, and slide decks that build themselves from a prompt. We've spent the past week testing every new feature. Here's what actually works, what's still half-baked, and exactly how to use each one. What's New: The Full Feature List Feature App What It Does Cross-app doc generation Docs Generates documents using context from Gmail, Drive, and the web Match writing style Docs Analyzes your past writing and mimics your personal voice Fill with Gemini Sheets Auto-populates cells with AI-generated or live web data Auto-generated decks Slides Creates full presentati