Is xlsx safe?
anthropics/skills · scanned Oct 4, 2026
Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like "the xlsx in my downloads") — and wants something done to it or produced from it. Also trigger for cleaning or restructuring messy tabular data files (malformed rows, misplaced headers, junk data) into proper spreadsheets. The deliverable must be a spreadsheet file. Do NOT trigger when the primary deliverable is a Word document, HTML report, standalone Python script, database pipeline, or Google Sheets API integration, even if tabular data is involved.
No significant risks found by the automated scan.
- Repository
- anthropics/skills/skills/xlsx
- Commit
- 8a1541c4a3ff
- Scanned
- Oct 4, 2026
- Files checked
- 40
- Stars
- 180k
- License
- None declared
- Last push
- Oct 3, 2026
Many legitimate skills run commands. Check that the commands match what the skill says it does.
skills/xlsx/scripts/office/soffice.py:46
return subprocess.run(["soffice"] + args, env=get_soffice_env(), **kwargs)
Many legitimate skills run commands. Check that the commands match what the skill says it does.
skills/xlsx/scripts/office/soffice.py:68
subprocess.run(
Many legitimate skills run commands. Check that the commands match what the skill says it does.
skills/xlsx/scripts/office/validators/redlining.py:192
result = subprocess.run(
Many legitimate skills run commands. Check that the commands match what the skill says it does.
skills/xlsx/scripts/office/validators/redlining.py:221
result = subprocess.run(
Many legitimate skills run commands. Check that the commands match what the skill says it does.
skills/xlsx/scripts/recalc.py:43
subprocess.run(
Many legitimate skills run commands. Check that the commands match what the skill says it does.
skills/xlsx/scripts/recalc.py:191
result = subprocess.run(
Files scanned (40)
- skills/xlsx/LICENSE.txt (1.4 KB)
- skills/xlsx/scripts/office/helpers/__init__.py (3.3 KB)
- skills/xlsx/scripts/office/helpers/pptx_chart.py (5.7 KB)
- skills/xlsx/scripts/office/helpers/pptx_slide.py (1.6 KB)
- skills/xlsx/scripts/office/helpers/pptx_theme.py (3.4 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-chart.xsd (73.2 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-chartDrawing.xsd (6.8 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-diagram.xsd (50.1 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-lockedCanvas.xsd (624 B)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-main.xsd (148.5 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-picture.xsd (1.2 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-spreadsheetDrawing.xsd (8.7 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-wordprocessingDrawing.xsd (14.4 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/pml.xsd (81.7 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-additionalCharacteristics.xsd (1.2 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-bibliography.xsd (7.2 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-commonSimpleTypes.xsd (6.2 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-customXmlDataProperties.xsd (1.2 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-customXmlSchemaProperties.xsd (880 B)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-documentPropertiesCustom.xsd (2.5 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-documentPropertiesExtended.xsd (3.4 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-documentPropertiesVariantTypes.xsd (7.3 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-math.xsd (22.8 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/shared-relationshipReference.xsd (1.3 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/sml.xsd (236.6 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/vml-main.xsd (25.5 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/vml-officeDrawing.xsd (24.7 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/vml-presentationDrawing.xsd (535 B)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/vml-spreadsheetDrawing.xsd (5.6 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/vml-wordprocessingDrawing.xsd (3.9 KB)
- skills/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/wml.xsd (167.4 KB)
- skills/xlsx/scripts/office/soffice.py (5.8 KB)
- skills/xlsx/scripts/office/validate.py (6.0 KB)
- skills/xlsx/scripts/office/validators/__init__.py (336 B)
- skills/xlsx/scripts/office/validators/base.py (33.0 KB)
- skills/xlsx/scripts/office/validators/docx.py (17.1 KB)
- skills/xlsx/scripts/office/validators/pptx.py (15.6 KB)
- skills/xlsx/scripts/office/validators/redlining.py (11.0 KB)
- skills/xlsx/scripts/recalc.py (10.4 KB)
- skills/xlsx/SKILL.md (8.4 KB)
[](https://skillsvetted.com/skills/anthropics/xlsx)
A full review covers what pattern matching can't: intent, logic and behavior in a sandbox.