How to Remove Personal Information from Word, Excel and PowerPoint Files

Every Word, Excel and PowerPoint file carries a small record of the people who worked on it: who created it, who saved it last, which company the software is registered to, and often the names of everyone who left a comment. That is useful inside a team and awkward when the file goes to a client, a publisher or the public. This guide shows what Office files store about people, where it lives inside the file, and how to remove personal information from Word, Excel and PowerPoint documents without changing their content.

What Office files store about people

Most of this information is written automatically, using the name in your Office account or the user name set in the program's options. You never typed it into the document, which is exactly why it is easy to forget.

• Author: the person who created the file. Templates and files copied from a colleague keep the original author's name.
• Last modified by: the last person who saved it. Every save normally overwrites this field.
• Company and manager: Company is often filled from the Office installation; Manager is filled when someone sets it.
• Total editing time and revision number: minutes the file was open for editing and how many times it was saved. A "fresh draft" with 900 minutes and revision 47 tells its own story.
• Dates: created, modified and last printed.
• Template path: a Word document attached to a custom template can store the template's full path, which often includes a user folder such as C:\Users\jlee\.
• Custom properties: fields added by people or by document management systems, such as a client name, matter number or department.
• Comment and tracked-change authors: every comment and every insertion or deletion with Track Changes on records the reviewer's name, and newer versions can also store an account ID for each reviewer.
• Hidden content: hidden worksheets (including "very hidden" ones that the normal Unhide menu does not list) and hidden slides.
• Thumbnail: a small preview image of the first page, saved when the preview option is turned on.

Where the metadata lives inside a .docx file

A .docx, .xlsx or .pptx file is a ZIP archive of XML files. Rename a copy to .zip and open it, and you will find a docProps folder with up to three property files:

Here is what a typical core.xml looks like, with namespace declarations shortened:

<cp:coreProperties ...>
  <dc:title>Q3 Pricing Proposal</dc:title>
  <dc:creator>Jordan Lee</dc:creator>
  <cp:lastModifiedBy>Sam Patel</cp:lastModifiedBy>
  <cp:revision>47</cp:revision>
  <cp:lastPrinted>2026-09-30T16:12:00Z</cp:lastPrinted>
  <dcterms:created xsi:type="dcterms:W3CDTF">2026-09-02T08:41:00Z</dcterms:created>
  <dcterms:modified xsi:type="dcterms:W3CDTF">2026-10-01T09:05:00Z</dcterms:modified>
</cp:coreProperties>

And the matching part of app.xml, where TotalTime is in minutes:

<Template>Normal.dotm</Template>
<TotalTime>912</TotalTime>
<Application>Microsoft Office Word</Application>
<Company>Example Consulting LLC</Company>

Names also appear outside docProps. In Word, comment authors sit in word/comments.xml, tracked changes carry a w:author attribute inside word/document.xml, and word/people.xml lists reviewers with their account details. Excel and PowerPoint keep similar lists for their own comments.

Step 1: Inspect the file first

Before you clean anything, look at what is there. Open the file in the Office metadata viewer. It reads .docx, .xlsx and .pptx files (including macro-enabled and template versions) as well as OpenDocument .odt, .ods and .odp files, directly in your browser without uploading them.

The viewer lists the core, app and custom properties, then gathers every person named anywhere in the file: author, last modified by, comment authors, tracked-change authors and the people list. It also counts comments and tracked changes, flags hidden and very hidden sheets, hidden slides, macros and embedded files, shows the template path and displays the stored thumbnail.

Older .doc, .xls and .ppt files use a different binary format, and password-protected files are encrypted, so neither can be read. Open them in Office and save a copy as a modern unprotected file first.

Step 2: Remove personal information from Word, Excel and PowerPoint files

Next, load the same file into the Office metadata remover. It removes:

• Core properties: author, last modified by, created, modified and last printed dates, revision number, keywords, description, category, status, and the title and subject unless you choose to keep them.
• Company, manager, template name, total editing time and hyperlink base from app.xml.
• The whole custom.xml part with every custom property.
• The thumbnail image and, in Word, the attached template path.

Two options control the rest. Replace names on comments and tracked changes with "Author" is on by default: it swaps every reviewer name for the word Author and removes reviewer account IDs, so the comments stay readable but anonymous. Keep the title and subject is off by default; turn it on when the title is meant to be public, such as a report name shown in a search result.

The text, tables, images, formulas and slides are left as they were. After saving, the tool reads the cleaned copy again and shows what remains under "Checked in the saved copy", so you are not relying on a promise. The file dates stored inside the ZIP archive are also set to a fixed value, so they do not reveal when you cleaned it.

What the cleaner does not remove

Metadata is only part of the picture. Some things are document content, and removing them is an editing decision only you can make:

• Comment and tracked-change text. Anonymizing the author does not delete what a reviewer wrote. In Word, use Review → Accept or Reject for every tracked change and Delete All Comments before you clean the file. The remover warns you when comments or tracked changes are still present.
• Hidden sheets and slides. The viewer reports them, but you need to unhide and delete them in Excel or PowerPoint if they should not be shared.
• Custom XML parts. Files from SharePoint or other document management systems can carry their own XML data, such as library fields, in a separate folder. These parts are not changed.
• Names in the text itself, such as a signature block, a header or a "Prepared by" line on a cover page.

The built-in alternative: Inspect Document

Office for Windows has its own cleaner. In Word, Excel or PowerPoint, go to File → Info → Check for Issues → Inspect Document, run the inspection, and click Remove All next to each category you want gone. It covers more than properties, including comments and revisions, custom XML data and hidden text, which makes it a good choice when you also want comments deleted rather than anonymized.

Two habits make either method safer. First, work on a copy, because removing comments and revisions changes the document and may not be undoable. Second, check the result afterwards. If you or a colleague open and save the cleaned file again, Office normally writes the current user back into Last modified by. Run the final copy, the one you are actually about to send, through the metadata viewer and confirm that the people list is empty.

PDFs exported from Word carry their own metadata

If you share a PDF instead of the .docx, cleaning the Word file is not enough on its own. A PDF has separate document properties, and Word's PDF export can copy the title and author into them, while the Creator field records which application produced the file.

Clean the Word document before exporting, then check the PDF with the PDF metadata viewer. If an author, company or old title is still there, the PDF metadata remover strips the document properties, XMP metadata and leftover copies of earlier values from incremental saves.

A quick checklist before you send

1. Accept or reject tracked changes and delete comments you do not want to share.
2. Unhide and review hidden sheets and slides; delete what should not leave.
3. Inspect the file, remove the metadata, and choose whether to keep the title.
4. Open the cleaned copy in the viewer and confirm no names remain.
5. If you are sending a PDF, export from the cleaned file and check the PDF properties too.