Is Fast Excel Safe?
Fast Excel — Nerq Trust Score 66.8/100 (B- grade). Based on analysis of 2 trust dimensions, it is generally safe but has some concerns. Last updated: 2026-05-22.
Use Fast Excel with some caution. Fast Excel is a Ruby gem with a Nerq Trust Score of 66.8/100 (B-), based on 3 independent data dimensions. Below the recommended threshold of 70. Security: 90/100. Popularity: 90/100. Data sourced from rubygems.org, GitHub, and NVD. Last updated: 2026-03-22. Machine-readable data (JSON).
Is Fast Excel safe?
CAUTION — Fast Excel has a Nerq Trust Score of 66.8/100 (B-). It has moderate trust signals but shows some areas of concern that warrant attention. Suitable for development use — review security and maintenance signals before production deployment.
What is Fast Excel's trust score?
Fast Excel has a Nerq Trust Score of 66.8/100, earning a B- grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Fast Excel?
Fast Excel's strongest signal is security at 90/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.
What is Fast Excel and who maintains it?
| Author | Pavel Evstigneev |
| Category | Ruby Gems |
| Source | N/A |
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Safety Guide: Fast Excel
What is Fast Excel?
Fast Excel is a Ruby gem — Wrapper for libxlsxwriter using ffi.
How to Verify Safety
Run bundle audit. Review on rubygems.org.
You can also check the trust score via API: GET /v1/preflight?target=fast_excel
Key Safety Concerns for Ruby gem
When evaluating any Ruby gem, watch for: dependency vulnerabilities, maintenance status.
Trust Assessment
Fast Excel has a Nerq Trust Score of 67/100 (B-) and has not yet reached Nerq trust threshold (70+). This score is based on automated analysis of security, maintenance, community, and quality signals.
Key Takeaways
- Fast Excel has a Trust Score of 67/100 (B-).
- Review carefully before use — below trust threshold.
- Always verify independently using the Nerq API.
Detailed Score Analysis
| Dimension | Score |
|---|---|
| Security | 90/100 |
| Maintenance | 50/100 |
| Popularity | 90/100 |
| Quality | 65/100 |
| Community | 35/100 |
Based on 5 dimensions. Data from rubygems.org, GitHub, and NVD.
What data does Fast Excel collect?
Privacy assessment for Fast Excel is not yet available. See our methodology for how Nerq measures privacy, or the public privacy review for any community-contributed notes.
Is Fast Excel secure?
Security score: 90/100. This meets the recommended security threshold for production use.
Nerq monitors this entity against NVD, OSV.dev, and registry-specific vulnerability databases for ongoing security assessment.
Full analysis: Fast Excel Security Report
How we calculated this score
Fast Excel's trust score of 66.8/100 (B-) is computed from rubygems.org, GitHub, and NVD. The score reflects 5 independent dimensions: security (90/100), maintenance (50/100), popularity (90/100), quality (65/100), community (35/100). Each dimension is weighted equally to produce the composite trust score.
Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.
This page was last reviewed on May 22, 2026. Data version: 0.0.
Full methodology documentation · Machine-readable data (JSON API)
Frequently Asked Questions
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Popular in Ruby Gems
See Also
Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.