Individual skill
csv-formula-injection
CSV/spreadsheet formula injection (DDE, Excel/LibreOffice, Google Sheets IMPORT*). Use when exports, imports, or user fields feed spreadsheets or reporting tools.
knowledge/hack-skills/skills/csv-formula-injection/SKILL.md
Source commit 961a0dd3d2d2f66a07a416ade3b1d4473b64802e
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- Last checked
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- License
- Apache-2.0
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# SKILL: CSV Formula Injection
> **AI LOAD INSTRUCTION**: This skill covers formula/DDE-style injection in CSV and spreadsheet contexts, obfuscation, cloud-sheet primitives, and safe testing methodology. Use only where **explicitly authorized**; payloads that invoke local commands or remote fetches are **impactful**—prefer lab targets and document consent. Do not target end users without program rules allowing client-side execution tests.
## 0. QUICK START
Characters that may trigger formula evaluation when a cell is opened in Excel, LibreOffice Calc, or similar (often only if the cell is interpreted as a formula):
```text
=
+
-
@
```