# x21

## Docs

- [Effective prompting](https://docs.kontext21.com/best-practices/effective-prompting.md)
- [Tool approval workflow](https://docs.kontext21.com/best-practices/tool-approval-workflow.md)
- [Data Storage Locations](https://docs.kontext21.com/deployment/data-storage-locations.md): Where X21 stores conversation history, logs, and configuration
- [Installation methods](https://docs.kontext21.com/deployment/installation-methods.md)
- [Process lifecycle](https://docs.kontext21.com/deployment/process-lifecycle.md)
- [Installation](https://docs.kontext21.com/getting-started/installation.md)
- [Quick start](https://docs.kontext21.com/getting-started/quick-start.md)
- [Understanding AI Responses](https://docs.kontext21.com/getting-started/understanding-ai-responses.md): Learn how X21's AI processes requests and generates responses
- [Available Tools](https://docs.kontext21.com/reference/available-tools.md): Complete reference of all Excel operations available to the AI
- [Keyboard Shortcuts](https://docs.kontext21.com/reference/keyboard-shortcuts.md): Complete keyboard shortcut reference for X21
- [Rate Limits & Quotas](https://docs.kontext21.com/reference/rate-limits-quotas.md): Understanding X21's usage limits and constraints
- [Slash Commands Reference](https://docs.kontext21.com/reference/slash-commands-reference.md): Quick reference for all built-in slash commands
- [Common issues](https://docs.kontext21.com/troubleshooting/common-issues.md)
- [Connection Status](https://docs.kontext21.com/troubleshooting/connection-status.md): Understanding and troubleshooting X21 connection issues
- [Error Types & Recovery](https://docs.kontext21.com/troubleshooting/error-types.md): Understanding and resolving X21 errors
- [Log files](https://docs.kontext21.com/troubleshooting/log-files.md)
- [Performance Issues](https://docs.kontext21.com/troubleshooting/performance-issues.md): Resolving slow responses and performance problems
- [Automation](https://docs.kontext21.com/use-cases/automation.md)
- [Data analysis](https://docs.kontext21.com/use-cases/data-analysis.md)
- [Data operations](https://docs.kontext21.com/use-cases/data-operations.md)
- [Data transformation](https://docs.kontext21.com/use-cases/data-transformation.md)
- [Document Processing](https://docs.kontext21.com/use-cases/document-processing.md): Analyze PDFs and images with AI assistance
- [Formatting Operations](https://docs.kontext21.com/use-cases/formatting.md): Apply and manage cell formatting with AI assistance
- [Formula management](https://docs.kontext21.com/use-cases/formula-management.md)
- [Structure operations](https://docs.kontext21.com/use-cases/structure-operations.md)
- [Vba macros](https://docs.kontext21.com/use-cases/vba-macros.md)
- [Visualization](https://docs.kontext21.com/use-cases/visualization.md)
- [Appearance & Customization](https://docs.kontext21.com/user-guide/appearance-customization.md): Customize the X21 interface to your preferences
- [Authentication](https://docs.kontext21.com/user-guide/authentication.md)
- [Configure Azure OpenAI Endpoint](https://docs.kontext21.com/user-guide/azure-openai-endpoint.md): Use Azure OpenAI instead of the default provider.
- [Conversation History](https://docs.kontext21.com/user-guide/conversation-history.md): Access and search your previous conversations
- [Conversation management](https://docs.kontext21.com/user-guide/conversation-management.md)
- [File attachments](https://docs.kontext21.com/user-guide/file-attachments.md)
- [Interface](https://docs.kontext21.com/user-guide/interface.md)
- [Keyboard shortcuts](https://docs.kontext21.com/user-guide/keyboard-shortcuts.md)
- [Message Feedback](https://docs.kontext21.com/user-guide/message-feedback.md): Rate responses and provide feedback to improve X21
- [Range & Sheet References](https://docs.kontext21.com/user-guide/range-sheet-references.md): Reference cells, ranges, and sheets in your conversations
- [Slash Commands](https://docs.kontext21.com/user-guide/slash-commands.md): Quick-access commands for common Excel operations
- [Tool Management](https://docs.kontext21.com/user-guide/tool-management.md): Control which Excel operations the AI can perform
- [Tool permissions](https://docs.kontext21.com/user-guide/tool-permissions.md)
- [Tool Preview & Undo](https://docs.kontext21.com/user-guide/tool-preview-undo.md): View changes before applying them and undo operations