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Qiefan Jiang

PROFILE

Qiefan Jiang

Worked on the DS4SD/docling repository to improve the reliability of MS Excel file ingestion by addressing the handling of invisible sheets. Using Python and backend development skills, implemented logic to set the content layer to INVISIBLE for hidden sheets, ensuring that only visible data is processed during file parsing. This adjustment prevents erroneous data extraction and aligns the workflow with user expectations for Excel handling. Updated the test suite to cover this scenario, reducing the risk of regression and supporting robust file processing. The work delivered a targeted bug fix that enhances data integrity for downstream analytics and document ingestion pipelines.

Overall Statistics

Feature vs Bugs

0%Features

Repository Contributions

1Total
Bugs
1
Commits
1
Features
0
Lines of code
136
Activity Months1

Your Network

364 people

Same Organization

@bytedance.com
302

Shared Repositories

62

Work History

September 2025

1 Commits

Sep 1, 2025

During Sep 2025, DS4SD/docling delivered a focused reliability improvement in the MS Excel parsing workflow by correctly handling invisible sheets. The change sets the content layer to INVISIBLE for hidden sheets, preventing erroneous data extraction and aligning behavior with user expectations. Tests were updated to cover this scenario, reducing regression risk. This work enhances data integrity in document ingestion, delivering tangible business value through more accurate Excel content processing and smoother downstream analytics.

Activity

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Quality Metrics

Correctness90.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

Backend DevelopmentExcel HandlingFile Processing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

DS4SD/docling

Sep 2025 Sep 2025
1 Month active

Languages Used

Python

Technical Skills

Backend DevelopmentExcel HandlingFile Processing