Excel’s Most Misused Feature—And Smarter Alternatives You Need

Key insights

• Merged cells in Excel may look neat, but they often disrupt key functions like Filters, Sorting, and PivotTables. It's best to avoid using them for better spreadsheet performance.
  
• Array formulas allow complex calculations across many cells. In new Excel versions, dynamic arrays "spill" results automatically, making data management easier.
  
• Using large fixed range references (like referencing an entire column) can slow down your spreadsheet and lead to calculation errors if not updated as data grows.
  
• The trim operator in Excel lets you reference only filled cells by trimming empty trailing cells from a range. This keeps formulas efficient and reduces mistakes.
  
• Dynamic arrays in Microsoft 365 make it easier to handle changing data without manually adjusting ranges or copying formulas repeatedly.
  
• Modern alternatives to Excel—such as Google Sheets, Smartsheet, Airtable, and AI-powered tools—offer real-time collaboration, automation, and improved productivity for teams needing more flexible solutions.

The Allure and Pitfalls of Merged Cells in Excel

Microsoft Excel has long been a go-to tool for professionals handling data, thanks to its rich set of features and flexibility. One of the most visually appealing features is the use of merged cells, which allows users to create clean, well-organized layouts. However, as Mynda Treacy (MyOnlineTrainingHub MVP) highlights in her recent YouTube video, this feature can cause more problems than it solves. When cells are merged, essential functions such as filters, formulas, and PivotTables often break down or behave unpredictably.

As a result, while merged cells create a tidy appearance, they introduce significant challenges in data manipulation and analysis. This tradeoff between visual neatness and functional reliability is at the heart of the ongoing debate about their use in modern spreadsheet design.

Hidden Costs: Performance and Usability Issues

Beyond immediate visual appeal, merged cells can disrupt the core usability of Excel. For instance, applying filters on a table with merged headers or columns can lead to errors or unexpected results. Similarly, formulas that reference merged ranges may return incorrect values or fail altogether. PivotTables, another widely-used feature, often refuse to work with merged cells in the source data, requiring users to unmerge cells and reformat their spreadsheets.

These issues can slow down workflows and increase the risk of errors, particularly as spreadsheets grow in size and complexity. Therefore, users must weigh the benefits of a streamlined layout against the potential for lost productivity and data integrity issues.

Modern Alternatives: Structuring Without Merged Cells

To address these challenges, Treacy recommends structuring spreadsheets without relying on merged cells. Instead, she demonstrates how to achieve a clean, readable layout using formatting options like center across selection or by carefully designing table headers and sections. These alternatives maintain the integrity of built-in Excel tools such as filters and PivotTables, ensuring that users can analyze and manipulate data efficiently.

Moreover, this approach allows for seamless updates and modifications to the dataset, as there is no need to repeatedly unmerge and reformat cells when adding new data or reorganizing tables. As a result, users benefit from both a professional appearance and reliable functionality.

Dynamic Arrays and the Trim Operator: A New Way Forward

In addition to avoiding merged cells, Treacy highlights the advantages of modern Excel features like dynamic arrays and the trim operator. Dynamic arrays automatically "spill" results into adjacent cells, eliminating the need for manual range adjustments. The trim operator goes a step further by referencing only filled cells, trimming away empty ones and keeping formulas efficient.

This innovation not only speeds up calculations but also reduces the likelihood of errors caused by referencing empty or irrelevant cells. As a result, Excel users can maintain high performance and accuracy, even as datasets expand.

Balancing Tradeoffs and Exploring Challenges

While these alternatives offer clear advantages, transitioning away from merged cells can require a shift in mindset and workflow. Users accustomed to the old methods may need to invest time in learning new formatting techniques and understanding dynamic array behavior. Additionally, not all organizations have upgraded to the latest Excel versions, which means some may not have access to features like the trim operator.

Despite these challenges, the long-term benefits—such as improved reliability, easier collaboration, and better compatibility with analytical tools—make the effort worthwhile. Ultimately, the key is to strike a balance between aesthetic preferences and the practical demands of data analysis.

Conclusion: Smarter Spreadsheet Design for the Future

As Mynda Treacy explains, the widespread use of merged cells in Excel is understandable but ultimately counterproductive for those who rely on advanced features. By adopting alternatives such as dynamic arrays and thoughtful formatting, users can enjoy both a polished appearance and robust, error-free functionality.

In summary, the move away from merged cells towards smarter range handling represents a best practice for anyone seeking to get the most out of Excel. For teams and individuals aiming for efficiency and accuracy, this evolution in spreadsheet design is a step in the right direction.

Keywords

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