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XLSX Comment Extractor
Extract original XLSX notes,threaded comments,authors and declaration details.
Original XLSX workbook
JSON
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the displayed example values,or choose the local input files requested by the controls. Optional source files take precedence where labelled.
- Choose Extract comments and inspect the complete result and any reported limitations.
- Use Download result and each companion download link to save complete outputs. Reset clears output and restores example controls.
Examples
Choose the required local file using the displayed input control.
Limitations
- Extract original worksheet legacy notes and modern threaded comments,keeping both downgrade/fallback sources. Include all authors/person records,rich declarations,text,IDs,parent replies,mentions,timestamps,attributes and extensions. Resolve inherited reply cell references with a derived label;missing people/parents/cycles remain diagnostics/unknowns. Duplicate ambiguous identifiers refuse. Metadata references support full Excel coordinates without cell expansion. At most10,000 combined comment/author/person/part records. No person/identity lookup,source rewriting or native Excel rendering claim. One standard Transitional XLSX up to20 MiB;50sheets/64-MiB expanded package,8-MiB/200,000-node inspected XML parts. Macros,signatures,embedded/ActiveX objects,encrypted files and external workbook links refuse. No external resource is fetched. Complete JSON report20 MiB. All processing stays in your browser.
- Complete outputs only. Unsupported or oversized input is refused. Follow the displayed job-specific bounds and format policies.
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