website/i18n/zh-cn/docusaurus-plugin-content-docs/current/sheet/fill/fill.md Adds zh-CN documentation for merge strategies and multi-row loop filling examples. website/docs/sheet/fill/fill.md Adds EN documentation for merge strategies and multi-row loop filling examples. fesod-sheet/src/main/java/org/apache/fesod/sheet/write/metadata/fill/FillConfig.java Adds mergeStrategy to fill configuration with defaults + validation. fesod-sheet/src/main/java/org/apache/fesod/sheet/write/executor/ExcelWriteFillExecutor.java Implements multi-row row-span advancing + merge replication and merged-style unification. fesod-sheet/src/main/java/org/apache/fesod/sheet/enums/FillMergeStrategy.java New enum defining merge handling strategies for loop fills. fesod-sheet/src/test/java/org/apache/fesod/sheet/fill/LoopRowFillingMergeTest.java New end-to-end tests covering multi-row fill + merge strategies for xls/xlsx and combined fill. fesod-sheet/src/test/java/org/apache/fesod/sheet/fill/LoopRowFillingMergeModel.java Test model for multi-row fill cases. fesod-sheet/src/test/resources/fill/case_a_07.xlsx Template for base multi-row loop fill (.xlsx). fesod-sheet/src/test/resources/fill/case_b_07.xlsx Template for AUTO merge strategy (.xlsx). fesod-sheet/src/test/resources/fill/case_c_07.xlsx Template for MERGE_CELL_STYLE strategy (.xlsx). fesod-sheet/src/test/resources/fill/case_d_07.xlsx Template for combined list+common base fill (.xlsx). fesod-sheet/src/test/resources/fill/case_e_07.xlsx Template for combined list+common fill with AUTO merge (.xlsx). fesod-sheet/src/test/resources/fill/case_f_07.xlsx Template for combined list+common fill with MERGE_CELL_STYLE (.xlsx). fesod-sheet/src/test/resources/fill/case_a_03.xls Template for base multi-row loop fill (.xls). fesod-sheet/src/test/resources/fill/case_b_03.xls Template for AUTO merge strategy (.xls).