Knowing how to manually write a nested VLOOKUP was the gold standard for decades, the integration of autonomous agents and LLMs has turned Excel into an orchestration platform.

Microsoft Excel provides powerful native AI, many advanced workflows require connecting to specific external Large Language Models (LLMs) like GPT-4o, Claude 3.5, or specialized open-source models.

The integration of GPT-5-level reasoning and autonomous agents has transformed reporting from a manual "build" process into an "orchestration" task.