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Fixed Format

Fixed format (also known as fixed-width) is a data interchange approach where every field has a predefined column width and is space-padded as needed. It contrasts with delimiter-separated formats like CSV, and is widely used in legacy mainframe systems, banking files, healthcare claims, government filings, and Unix system files such as /etc/passwd. While not an API in the REST sense, fixed-format files remain a critical data exchange medium that modern APIs and ETL pipelines must read and write.

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Adaptigent Adaptigent (formerly GT Software) is a technology company founded in 1982 that specializes in mainframe integration and API enablement solutions. Their flagship product, Adaptive Integration Fabric (formerly Ivory Suite), empowers enterpri… emerging 1

A term in the Database area.

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Data ExchangeData FormatsFile FormatFixed FormatFixed WidthFlat FilesLegacy SystemsMainframe