Excel: 15 Modern Functions for 2026

Key insights

• Modern Excel functions: Excel 2026 adds AI and array-first functions that simplify complex tasks.
  Use them to reshape, search, and automate without VBA or manual PivotTable work.
• Array & reshape tools: Functions like MAP, REDUCE, EXPAND, TOCOL, TOROW, WRAPROWS and WRAPCOLS let you transform ranges and run element-wise operations.
  They spill results automatically and remove the need for manual copying or helper columns.
• Lookup & filter: XLOOKUP and XMATCH replace older lookup formulas for exact and range matches, while FILTER, UNIQUE and TRIMRANGE extract and clean data fast.
  TRIMRANGE helps avoid volatile OFFSET references and makes ranges more reliable.
• Copilot & Agent Mode: Copilot brings natural-language prompts into formulas and analysis, and Agent Mode enables conversational automation for tasks like building summaries or tables.
  Note that some AI features may require a Copilot subscription.
• Productivity gains: New functions reduce manual setup, speed reporting, and lower error rates by automating common steps and supporting SPILL-aware behaviors.
  Features like IMAGE let you embed pictures in cells and streamline dashboards and presentations.
• Requirements & tips: Most features work in Microsoft 365 on desktop and web; some AI tools need additional licenses.
  Prefer dynamic array functions over volatile ones, test on sample data, and update workflows gradually for smooth adoption.

Video Snapshot: What Mynda Treacy Demonstrates

In a concise YouTube walkthrough, Mynda Treacy of MyOnlineTrainingHub [MVP] highlights the top modern Excel features that she says every analyst should know in 2026. She presents practical examples and an accompanying sample file so viewers can follow along and replicate results in their own workbooks. The video groups functions by purpose and shows live demonstrations of how these tools replace older techniques like PivotTables and volatile formulas. Overall, the presentation aims to make modern Excel both approachable and immediately useful for day-to-day tasks.

Treacy timestamps key sections to help viewers jump to topics such as reshaping arrays, AI integration, and image embedding, making the tutorial easy to navigate. She emphasizes functions that leverage dynamic arrays and the new AI-enabled capabilities added to Microsoft 365 in recent years. Consequently, the video targets both intermediate users who want to upgrade workflows and advanced users seeking faster, cleaner solutions. Her practical tone keeps the focus on results rather than theoretical detail.

Key Functions and How They Change Workflows

Treacy highlights a set of functions that together shift spreadsheet work from manual manipulation to declarative formulas. For example, she demonstrates XLOOKUP and XMATCH as direct replacements for older lookup approaches, while TOCOL, TOROW, WRAPROWS, and WRAPCOLS reshape data without helper columns. These functions reduce the need for complicated helper ranges and make formulas easier to audit, since results spill automatically into adjacent cells and update as source data changes. In practice, that means less time rebuilding tables and more time interpreting results.

In addition, Treacy showcases newer tools like MAP and REDUCE for array transformations and accumulation, and she points out utility functions such as EXPAND and TRIMRANGE that tidy up ranges for predictable calculations. She also calls attention to the IMAGE function for embedding pictures into cells and to AI features like COPILOT that can generate formulas from natural language prompts. Taken together, these capabilities let users automate repetitive steps and create cleaner, more reproducible worksheets.

Practical Advantages Demonstrated

The video makes clear that adopting modern functions can yield immediate efficiency gains, particularly for repetitive reporting and data cleansing. Treacy shows that replacing volatile functions like OFFSET with deterministic array tools improves workbook performance and stability, especially when spreadsheets scale up. Furthermore, she demonstrates how AI-assisted functions reduce the time spent writing complex formulas by offering natural-language formula generation and suggestions.

As a result, teams can produce consistent reports faster and with fewer manual interventions, which lowers the risk of human error during handoffs. Treacy also notes that functions that spill into ranges simplify copy-and-paste mistakes and make change tracking more transparent. In short, modern functions help turn one-off fixes into repeatable processes, which benefits both individual analysts and shared team workbooks.

Tradeoffs and Challenges to Consider

Despite the benefits, Treacy points out several tradeoffs that organizations must weigh before a full migration to modern functions. First, many of the newest capabilities require a Microsoft 365 subscription and, in some cases, a separate Copilot plan, which creates licensing and budget considerations for teams. Moreover, AI-driven suggestions can accelerate work but may produce incorrect or incomplete results, so users must verify outputs rather than assume they are perfect.

Compatibility is another challenge: legacy spreadsheets and users on older Excel versions may not support dynamic arrays or AI features, leading to broken formulas after sharing. Performance can also vary; while array formulas often reduce complexity, poorly designed array operations on very large datasets may still strain system resources. Therefore, balance is essential: adopt modern functions to enhance productivity, but maintain testing, version control, and fallback options for cross-platform collaboration.

Adoption Tips and Best Practices

Treacy offers practical guidance for teams planning to adopt these functions, recommending staged rollouts and the use of sample files to train users. She suggests starting with functions that replace common pain points—such as using XLOOKUP for lookups and TOCOL for flattening data—and then introducing AI features once users understand verification techniques. Documentation and clear naming conventions for lambdas and custom formulas are also essential to keep workbooks maintainable over time.

Finally, Treacy underscores the importance of testing and peer review: before fully replacing established processes, run side-by-side comparisons and retain a backup of legacy solutions. With a deliberate approach, organizations can realize the productivity gains shown in the video while minimizing disruption and preserving data integrity. Her tutorial therefore serves as both a practical demo and a roadmap for safer, more effective adoption of Excel's 2026 toolset.

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