Excel to JSON: How to Convert Spreadsheet Data for APIs and Developers
How Excel-to-JSON conversion actually works, the basic row-to-object mapping, where data types trip people up, and the honest limits of flat JSON output.
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- Excel to JSON: How to Convert Spreadsheet Data for APIs and Developers
- Spreadsheets are the default format for anyone entering data by hand, but most APIs, web apps, and databases expect JSON. That mismatch shows up constantly, a product catalog maintained in Excel that needs to feed a web store, a client list that needs to POST into a CRM's API, or configuration data that a developer needs in a structured, nested format instead of flat rows and columns. Here's how the conversion actually works, and where it gets more complicated than a simple row-to-object mapping.
- **The basic mapping**
- At its simplest, each row in a spreadsheet becomes one JSON object, and each column header becomes a key:
- ``` name, price, in_stock Widget A, 12.99, true ```
- becomes:
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