Hierarchy Fusion XL Format

This section describes the Fusion XL XLSX format for writing SDMX Hierarchy artifacts. It outlines the spreadsheet design, discusses edge cases, and documents known limitations of the current implementation.

Documents

Document	Description
format_design_spec.md	Full spreadsheet layout specification: regions, columns, rules, and edge cases
codelist-aliases.md	Alias format rules and collision-resolution convention
limitations.md	Known limitations of the current writer implementation