A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
In short - yep - Excel remains a highly worthwhile skill in 2026. While AI tools like Microsoft Copilot and Google Gemini can generate formulas, clean data, and summarize trends, they have not replaced the need for human expertise. Instead, employer expectations have shifted. They no longer just want someone who can enter a formula. They want someone who can validate, design, and audit what AI produces.
For starters, AI models can produce incorrect results or misinterpret complex business logic. If Copilot generates a nested XLOOKUP or LAMBDA function, an advanced user should be able to verify its logic and ensure that business decisions are based on accurate results. Designing scalable data models, structuring relational tables, and planning how data flows across workbooks also require sound judgment and an understanding of the business requirements.
Security and data privacy are additional considerations. Some enterprises, financial institutions, and healthcare organizations restrict the use of AI tools with sensitive data because of regulatory and compliance requirements, including GDPR and HIPAA. In these environments, Excel expertise remains essential, particularly when data cannot be shared with external AI services. Freelance clients also value accuracy and reliability. They need spreadsheets that continue to work when inputs change, not just files that look correct at first glance. Advanced Excel skills make it possible to build robust, reusable templates for clients with limited technical expertise.
Note that the definition of advanced Excel has evolved. Knowing how to write a basic VLOOKUP formula is no longer a significant differentiator because AI can generate one quickly. Instead, focus on Power Query and Power Pivot for automated data preparation and modeling. Learn dynamic array functions such as FILTER and UNIQUE, along with LET, to understand, debug, and optimize complex formulas. Develop data modeling and dashboard design skills to create interactive reports that communicate meaningful business insights. Also, explore Office Scripts and Python in Excel to understand how automation and programming can extend Excel's capabilities.
Generally, it's not a choice between Excel and AI - it's about combining them. AI can draft complex formulas, suggest data transformations, and generate initial automation scripts, reducing the time spent on repetitive tasks and syntax. However, human expertise is still needed to verify the results, correct errors, and ensure that the solution meets the actual business requirements.
Ultimately, AI has made basic spreadsheet tasks easier to automate, but it has increased the value of professionals who can handle complex analysis, reliable automation, data modeling, and quality assurance. Deep Excel knowledge remains valuable, particularly when combined with AI literacy and a strong understanding of business data.
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hth
Marcin