I’m building a backend server that parses an excel file using sheetjs library and return the json to the front (spa) to complete rows infos then send it back to be stored in DB. The problem is : It doesn’t scale for large files (50sec to parse 1.5 mb xlsx). Can you help me to improve this?

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Control Flow Streams XLSX Node Stream Processing

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  • xlstream

    Turns XLSX into a readable stream.

    • Some libraries that really helped me out: - https://github.com/Claviz/xlstream

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