Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add DevExpress/agent-skills --skill devexpress-office-file-api-excel-exportgit clone --depth 1 https://github.com/DevExpress/agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/devexpress/agent-skills/devexpress-office-file-api-excel-export)<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-office-file-api-excel-export"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-office-file-api-excel-export/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-office-file-api-excel-export"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-office-file-api-excel-export.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00131 | $0.04923 |
| Opus 5 | $0.00066 | $0.02462 |
| Sonnet 5 | $0.00026 | $0.00985 |
| Haiku 4.5 | $0.00013 | $0.00492 |
Grade A, and why
devexpress-office-file-api-excel-export scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 425 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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.
CRITICAL: 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? | No | Yes |
| NuGet | DevExpress.Document.Processor (shared) |
DevExpress.Document.Processor |
| Namespace | DevExpress.Export.Xl |
DevExpress.Spreadsheet |
Rule: If the developer needs to read, modify, add charts, or create pivot tables → use the Spreadsheet Document API skill instead. If they need to stream-generate a large file from data → this skill is correct.
When to Use This Skill
Use this skill when you need to:
- Generate large Excel reports (.xlsx) with low memory consumption
- Write rows sequentially from a database reader or IEnumerable data source
- Export grid or report engine data to Excel in a streaming fashion
- Create Excel files in server-side or cloud environments where RAM is constrained
- Apply cell formatting (fonts, colors, borders, number formats) during export
- Add formulas, subtotals, or AutoFilter to generated files
- Create conditional formatting rules on streamed data
- Build Excel tables (IXlTable) with styles and calculated columns
- Insert sparklines or pictures into generated worksheets
- Configure print settings, headers/footers, and page breaks
- Add data validation rules to cell ranges
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 425 lines · 131 tokens per session scan A 4ce4c3266aa6
devexpress-office-file-api-excel-export is a skill published in the GitHub repository DevExpress/agent-skills (52 stars, last pushed 24d ago), licensed MIT. It adds 131 tokens to every session and 4,923 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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