Core properties
Removes author, last editor, title, subject, keywords, revision, and stored document dates.
Inspect and clean supported XLSX package metadata in your browser without uploading the workbook.
Private file workbench
We inspect one file at a time inside this browser. Nothing is uploaded.
XLSX only · up to 75.0 MB
Removes XLSX package metadata only. It does not remove hidden sheets, comments, formulas, external links, names, or workbook content.
Supported cleanup
The tool targets dedicated Office Open XML property parts and leaves workbook cells and formulas outside its scope.
Removes author, last editor, title, subject, keywords, revision, and stored document dates.
Removes Office application fields, company information, and custom workbook properties.
Removes embedded preview thumbnails and normalises internal ZIP modification times.
Checks that the workbook part remains and metadata parts and relationships are gone.
Know the boundary
Spreadsheet data can be hidden in cells, sheets, formulas, names, and connections. Inspect those features in Excel before sharing.
Where it helps
A spreadsheet can look ready for delivery while its package still identifies people, software, templates, or internal workflow details.
Remove dedicated author, company, last-editor, template, and date properties before delivering a workbook outside your team.
Create a metadata-clean XLSX before offering research, reporting, pricing, or open-data workbooks as public downloads.
Clear package properties, custom fields, preview thumbnails, and internal ZIP timestamps before repurposing a company template.
Common questions
Workbook properties are different from spreadsheet content. Know what the tool can verify before sharing an XLSX.
No. Those are workbook content. The tool removes supported package metadata, while hidden cells, sheets, names, comments, pivot caches, and connections must be reviewed in Excel.
The tool does not intentionally edit workbook cells, formulas, or formatting. It rebuilds the Office package without the targeted property parts and then verifies that the main workbook part remains.
No. Signed and encrypted workbooks are rejected rather than altered. Remove protection in Excel first if you need to create a separate clean copy.
Go deeper
Practical guidance for checking what the file carries, cleaning the supported metadata, and reviewing everything outside the tool's scope.
Office handover
Prepare Word, Excel, and PowerPoint files without confusing package properties with comments or hidden content.
Read the guideDocument metadata
Learn where author, company, template, date, software, XMP, and custom fields live before you share a document.
Read the guideImportant boundary
Understand the difference between cleaning file properties and removing sensitive content from the document or audio itself.
Read the guideMore private file tools
Use the same local-first workflow for other supported documents and audio files.
Strip standard properties, XMP packets, application metadata, and the PDF file identifier.
Open toolClean DOCX properties, custom fields, preview thumbnails, and internal package timestamps.
Open toolClean PPTX properties, custom fields, preview thumbnails, and internal package timestamps.
Open tool