docs.sheetjs.com/docz/docs/03-demos/03-net/index.md

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title: Servers and Remote Data
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SheetJS libraries are commonly used in data pipelines for processing personally
identifiable information (PII).

**Libraries never attempt to make network requests and never collect telemetry.**

In practice, there are many interesting networking use cases including server
processing of user-submitted files and fetching files from an external source.

When processing data from an external source, a platform-specific operation will
obtain binary data and SheetJS libraries will process the data.

When exporting data, SheetJS libraries will generate raw data and
platform-specific operations will distribute the data.

The demos in this section cover common use cases:

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