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2022-08-13 22:01:26 +00:00
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---
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# Zen of SheetJS
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SheetJS design and development is guided by a few key principles.
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### Data processing should fit in any workflow
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The library does not impose a separate lifecycle. It fits nicely in websites
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and apps built using any framework. The plain JS data objects play nice with
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Web Workers and future APIs.
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### JavaScript is a powerful language for data processing
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2022-10-30 05:45:37 +00:00
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The ["Common Spreadsheet Format"](/docs/csf/general) is a simple object
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representation of the core concepts of a workbook. The various functions in the
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library provide low-level tools for working with the object.
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For friendly JS processing, there are utility functions for converting parts of
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a worksheet to/from an Array of Arrays. The [Tutorial](/docs/getting-started/example)
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combines powerful JS Array methods with a network request library to download
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data, select the information we want and create a workbook file.
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### File formats are implementation details
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The parser covers a wide gamut of common spreadsheet file formats to ensure that
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"HTML-saved-as-XLS" files work as well as actual XLS or XLSX files.
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The writer supports a number of common output formats for broad compatibility
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with the data ecosystem.
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To the greatest extent possible, data processing code should not have to worry
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about the specific file formats involved.
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