Silent Data Killer: Why JSON-to-Excel Converters Are Breaking Your Numbers

JSON-to-Excel converters are silently corrupting data at scale due to JavaScript's IEEE-754 numeric limitations, converting large IDs to rounded values and stripping leading zeros without any warning signals. For enterprises processing database IDs, invoice numbers, and financial records through these tools, the risk is existential—spreadsheets appear correct on screen while containing fundamentally wrong data. The true danger emerges weeks later during reconciliation, when the cost of discovery is measured in compromised client relationships and operational chaos.