Tech May 1, 2026 14 min Splitting Correctness from Throughput in XLSX Streaming Writes A hybrid approach that lets Apache POI build the OOXML scaffold while sheetData is streamed by hand. Verified XML escape, control char, date cell, and merge behavior of scndry's implementation on M1 Max. Java パフォーマンス アーキテクチャ 実験
