Copilot in Outlook can read, write, and send emails, categorize them, provide smart replies, schedule meetings, and manage tasks. It operates under user command, respecting privacy and confidentiality.

Copilot in PowerPoint can suggest design layouts, recommend and insert relevant images, graphs, and tables based on the content. It can also help with text formatting, spell-checking, and provide suggestions for slide transitions and animations. 

Copilot in Excel can help with data entry, formula creation, data analysis, and visualization. It can suggest formulas based on the context, detect errors, and provide solutions. It can also generate charts and pivot tables based on the data and provide insights through data analysis. 

Copilot in Word assists with document creation and editing. It can help with text formatting, grammar checking, and spell-checking. It can also suggest improvements for sentence structure and vocabulary. Additionally, it can generate summaries for lengthy texts and provide readability scores.