What is the maximum number of columns in a modern Microsoft Excel worksheet?

A. 16,384

B. 256

C. 65,536

D. 1,048,576

Explanation

A modern Excel worksheet supports 16,384 columns, running from column A through column XFD. Microsoft lists this together with the worksheet row limit in its official specifications.

Source

Microsoft Support — Excel specifications and limits

Answer verified on 2026-09-21

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