Privessa

Remove Excel Metadata

Strip the author, company and custom properties from an XLSX workbook before sharing it.

Office documents Client-side fflate rewrites the OOXML parts

Tool preview

How to use it

  1. 01

    Drop a .xlsx file.

  2. 02

    Review the cleared field list.

  3. 03

    Download the cleaned workbook.

Limitations

FAQ

Does it remove hidden sheets?

No. Hiding is workbook structure, not metadata; the scanner flags it so you can decide.

Are formulas affected?

No, only the metadata parts are rewritten.

Can I clean a whole folder?

Not yet; process files one at a time.

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
fflate rewrites the OOXML parts
Category
Office documents
Network requests
None while processing

Related tools