Support nullPlaceholder in Excel file creation#6446

Draft

Copilot wants to merge 10 commits intomasterfrom

copilot/fix-empty-cells-to-null

Commits on Feb 17, 2026

Initial plan
Copilot
committed
Fix Excel file creation to preserve null values from ExamplesTable nullPlaceholder

Copilot
and
valfirst
committed
Fix Excel file creation to preserve null values from ExamplesTable nullPlaceholder

Copilot
and
valfirst
committed
Remove accidentally committed gradle wrapper files and update .gitignore

Copilot
and
valfirst
committed
Revert .gitignore change

Copilot
and
valfirst
committed
Fix build failures by handling duplicate columns in ExamplesTable

Copilot
and
valfirst
committed
Address review feedback: remove column uniqueness check, use var in tests, add integration test

Copilot
and
valfirst
committed
Align tables for readability and remove redundant step

Copilot
and
valfirst
committed

Commits on Feb 18, 2026