# devexpress-office-file-api-excel-export

> Claude/Codex skill by [@devexpress](https://omgskills.com/library/devexpress/index.md) · 66 stars · Updated 2026-10-19

Build .NET applications with the DevExpress Excel Export Library for streaming generation of Excel files with low memory footprint. Use when generating large Excel reports, writing rows sequentially, building Excel files from data grids or report engines, or when the full Spreadsheet Document API would use too much memory. Also use when someone mentions "DevExpress Excel Export", "XlExport", "IXlExporter", "IXlSheet", "DevExpress.Export.Xl", "streaming Excel generation", "low-memory Excel", or asks about generating large Excel files efficiently with DevExpress. Covers both .NET and .NET Framework.

Tags: agent-plugins, agent-skills, ai, ai-coding-agent, devexpress, devextreme, skills

## Install

```sh
git clone https://github.com/DevExpress/agent-skills /tmp/agent-skills && ln -s /tmp/agent-skills/plugins/dx-office-file-api/skills/devexpress-office-file-api-excel-export ~/.claude/skills/devexpress-office-file-api-excel-export
```

## From README

DevExpress Excel Export Library The Excel Export Library is a low-level, streaming .NET API for generating Excel files (.xlsx, .xls, .csv) with a minimal memory footprint. It writes rows sequentially to an output stream and cannot read or modify existing files. Use it when you need to produce large Excel reports from databases or data grids without loading the entire document into RAM. The primary namespace is DevExpress.Export.Xl. Excel Export Library vs. Spreadsheet Document API | | Excel Export Library | Spreadsheet Document API | |---|---|---| | Model | Streaming — write rows top-to-bottom, forward only | In-memory — random access to any cell at any time | | Memory | Very low — ideal for large files | Higher — entire workbook in RAM | | Can read files? | No | Yes | | Can modify existing files? | No | Yes | | Charts, Pivot Tables?

## Links

- HTML page: https://omgskills.com/library/devexpress/agent-skills/plugins/dx-office-file-api/skills/devexpress-office-file-api-excel-export/
- GitHub: https://github.com/DevExpress/agent-skills
- Author: [@devexpress](https://omgskills.com/library/devexpress/index.md)

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