`proper-all-caps`

Subject: PROPER
Category: value
Formula: =PROPER("THIS IS A TITLE")
Canonical: This Is A Title

Owning divergences (1)

DV-0005 ironcalc, pycel: function not implemented — ADDRESS, CHAR, CLEAN (+17 more)
missing-function ironcalcpycel

Per-engine results

matches canonical diverges no fixture

Engine	Verdict	Value
gsheets	match	This Is A Title
excel	match	This Is A Title
lattice	match	This Is A Title
ironcalc	diverge	#NAME?
hyperformula	match	This Is A Title
libreoffice	diverge	—
formulas	match	This Is A Title
pycel	diverge	#NAME?