Corrupt Excel (.XLSX / .XLSM) SharedStrings & Formula-Sheet Matrix Surgeon

Deterministic SpreadsheetML 'sharedStrings.xml' UTF-8 surrogate/XML-entity sanitizer + sheet*.xml sparse cell-coordinate parser + corrupt calcChain/externalLink surgical bypass engine (.xlsx, .xlsm) built for Microsoft Excel, Google Sheets, 1C — zero-upload ephemeral Wasm RAM execution.

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Cloudflare Ephemeral Wasm RAM · 0% Retention

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