Office Hidden Data Scan
Inspect a DOCX, XLSX or PPTX package for tracked changes, comments, hidden sheets, macros and embedded files.
Office documents Client-side OOXML traversal
Tool preview
How to use it
- 01
Drop a document.
- 02
Read the findings, sorted by severity.
- 03
Clean the file with the matching remover, or edit it in Office.
Limitations
- ! It inspects the package structure, not the rendered content, so visual metadata in images is not covered.
- ! A clean result means no known carrier was found, not that the document is safe.
FAQ
What is the most common leak?
Author names in core properties and tracked changes that were never accepted.
Why do macros matter?
They do not run in the browser, but they will run on the recipient machine if the file is opened in Office.
Is the document uploaded?
No, the package is unpacked in the page.
Files never leave your device
Processing happens in your browser using the File API, WebAssembly and Web Workers. There is no upload endpoint.
Technical details
- Processing
- Client-side
- Implementation
- OOXML traversal
- Category
- Office documents
- Network requests
- None while processing