What is the main benefit of using named ranges in Excel?

Using named ranges in Excel primarily enhances the readability of formulas. When you assign a name to a range of cells, it allows you to use descriptive identifiers instead of cell references. For example, instead of writing a formula as =SUM(A1:A10), you could use =SUM(SalesData), assuming "SalesData" is the name assigned to that range. This makes it much clearer what the formula is intended to calculate, thus improving understandability for anyone reviewing the spreadsheet.

In addition, utilizing named ranges can help reduce errors in complex formulas, as the names remind users of the purpose of the data being referenced. This clarity is particularly beneficial in large spreadsheets or when collaborating with others who may not be familiar with the data structure.

While named ranges do simplify data entry and can support data validation indirectly, these are not the primary benefits. They do not inherently increase the file size of the workbook, nor do they enforce data validation rules by themselves. Their principal advantage lies in making formulas more intuitive and accessible, promoting greater accuracy and efficiency in data management.