Sider AI
Previously listed as free tier · not rechecked
Chat, research, create, and delegate browser tasks without leaving the page you are working on.
AI Agents & Chatbots
Business & Automation Checked Sep 28, 2026
GPT for MS Excel (Twistly)
Use purpose-built AI functions inside Excel instead of moving every task into a chat window.
Best for: Excel users who want prompt-driven formulas, data cleanup, and transformations inside the workbook
Access
Previously listed as Free trial without a credit card; paid Starter, Pro, and Team plans after the trial
Useful?
What you can do with it
- Generating or explaining spreadsheet formulas from plain English
- Cleaning, classifying, translating, or filling a range of cells
- Creating an AI-powered table or extracting structured fields from messy text
Good to know
- Runs inside Excel instead of requiring constant copy and paste
- Provides multiple spreadsheet-specific functions
- Marketplace listing shows a free trial and a maintained publisher page
Limitations
- Third-party identity can be confused with OpenAI's official Excel feature
- Paid plans follow the trial
- Sensitive workbook data needs a careful permissions and privacy review
Other official links
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