Show HN: Xls-reader – read legacy .xls in the browser, no upload, zero deps

Category: library

Tags: javascript, excel, browser, parsing, zero-dependency

Score: 5.7/10 (Innovation: 5, Technical: 6, Documentation: 3, Utility: 6)

xls-reader is a zero-dependency JavaScript library for parsing legacy Excel .xls files entirely in the browser, ensuring no data is uploaded. It's interesting because it brings client-side spreadsheet parsing to a legacy format that typically requires server-side tools or heavy dependencies.

Target audience: frontend devs, web developers

Repository: https://zanlucathiago.github.io/xls-reader/demo.html

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