Why Excel is failing QS practices in 2026

Excel has been the quantity surveyor's default tool for decades. It's flexible, familiar and free at the point of use. But for tender comparison specifically, it's increasingly a liability.

Fragility at scale

Broken formulas, overwritten cells and silent reference errors are endemic in large comparison workbooks. The bigger the tender, the higher the chance an error goes unnoticed until it matters.

No understanding of construction

A spreadsheet can't read a priced BoQ, can't match line items contractors describe differently, and can't tell you which rate is an outlier. Every one of those tasks is left to you, manually.

Version chaos

When several people touch the same workbook, the question of which version is authoritative becomes a daily headache — and a real risk.

The alternative

Purpose-built tools keep the flexibility of import/export while removing the manual drudgery and error surface. You can still export a clean Excel report at the end — you just don't have to build the comparison by hand.