COMPANION EXCEL DATA
Article: China's urban fringes are undergoing functional reorganization
Version: double-anonymized submission package, 20 September 2026

FILES
1. Main_Figure_Source_Data.xlsx
   Machine-readable source data for manuscript Figs. 1–5.

2. Supplementary_Figure_Source_Data.xlsx
   Machine-readable source data for Supplementary Figs. S1–S5.
   The former VIIRS Extended Data figure is omitted because its dataset is already used by manuscript Fig. 3.

3. Supplementary_Tables.xlsx
   Submission-ready Tables S1–S4 in machine-readable form, including numeric long-format transition and path tables, final model parameters, hindcast diagnostics, scenario summaries and terminal consistency checks.

KEY DEFINITIONS
- A city–grid instance is one fixed 500-m grid cell considered in one city-specific observation domain.
- The analysis contains 152,873 city–grid instances across 15 cities and 146,118 unique spatial cells because city-specific domains can overlap.
- MF is a low-dominance mixed state. It does not prove that multiple functions are present or coordinated and may include low-information or all-zero POI cells.
- The legacy source key `mixed_transition` is normalized to `MF` in the submission workbooks; original source-file names are retained only for provenance.
- Scenario outputs are conditional model comparisons, not deterministic forecasts or causal policy effects.

DATA AND LICENCE BOUNDARY
Original Amap POI records are not redistributed. The workbooks contain only derived, analysis-ready tables used in the manuscript and Supplementary Information. Users must obtain source POI data under the provider's applicable terms. CLCD, VIIRS and ASPECT sources are identified in the manuscript and Supplementary Information.

QUALITY CONTROL
- All numeric fields are stored as numeric spreadsheet values rather than numeric-looking text.
- Formula-error scans returned no errors.
- All six terminal checks in Supplementary_Tables.xlsx pass.
- All 60 city–scenario hard-state rows sum to 100% within floating-point precision.
- The files contain no macros or external workbook links.
