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.
URL: Visit APIs.json URL
- Type: Index
- Position: Consumer
- Access: 3rd-Party
- Data Exchange, Data Formats, File Formats, Fixed Format, Fixed Width, Flat Files, Legacy Systems, Mainframe
- Created: 2025-01-01
- Modified: 2026-04-28
FN: Kin Lane
Email: kin@apievangelist.com