The exponent sign goes right before the exponent digits, after any literal that follows
the E; ? pads exponent digits with spaces; % and commas never scale a scientific section;
zero shows 0 in every integer placeholder. Checked against the 248 TEXT() rows of Apache
POI's NumberFormatApproxTests.xlsx, copied as data into a test.
Checked against Excel-cached TEXT() results in number- and text-format test workbooks: 226 of 352 TEXT cells mismatched before, 0 after.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>