Inspect Cell Neighborhoods, Not Just Single Cells
Use neighboring formula patterns to detect likely spreadsheet defects.
Formula neighborhoods give you a baseline. If one formula breaks the pattern, inspect it before trusting the output. The pattern signal Many workbooks repeat the same logic across periods, products, or departments. A defect often appears as one copied formula that did not move correctly, one reference pointed at the wrong row, or one column linked to an older tab. Comparing neighboring formulas surfaces those breaks faster than reading each formula in isolation. The exception test A different formula is not automatically a defect. Ask three questions: does the cell have a different business role, is the exception documented, and…
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