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Office Add-in

Anonymize text directly in Microsoft Office

The anonymize.today Office Add-in brings PII detection and anonymization directly into Microsoft Word, Excel, and PowerPoint. Anonymize text without leaving your document.


Supported Applications

Microsoft Word

Documents & letters

Microsoft Excel

Spreadsheets & data

Microsoft PowerPoint

Presentations

Requirements

  • Microsoft 365: Desktop or web versions
  • Office 2019+: Desktop versions for Windows/macOS
  • Internet connection: Required for PII detection

Installation

From Microsoft AppSource

  1. Open Word, Excel, or PowerPoint
  2. Go to Insert → Get Add-ins (or Home → Add-ins)
  3. Search for "anonymize.today"
  4. Click Add to install
  5. The add-in appears in your ribbon

Manual Installation (Admin)

For organization-wide deployment:

  1. Download the manifest from your anonymize.today account
  2. Deploy via Microsoft 365 Admin Center
  3. Assign to users or groups

Note

The add-in is available in 11 languages and automatically uses your Office language settings.


Using the Add-in

Opening the Add-in

  1. Click the anonymize.today button in your ribbon
  2. A panel opens on the right side of your document
  3. Sign in with your anonymize.today account

Analyzing Text

  1. Select the text you want to analyze (or select all)
  2. Choose a preset or select entity types
  3. Click Analyze
  4. Detected entities are highlighted in the panel

Anonymizing Text

  1. Review the detected entities
  2. Select/deselect entities as needed
  3. Choose the anonymization method (replace, mask, etc.)
  4. Click Apply
  5. Your document is updated with anonymized text

Tip

Use Ctrl+Z (or Cmd+Z) to undo changes if needed. The add-in modifies your document directly.


Features

Word Features

  • Analyze and anonymize selected text or entire document
  • Preserve formatting while anonymizing
  • Work with tracked changes

Excel Features

  • Analyze selected cells or ranges
  • Process entire columns of data
  • Maintain cell formatting

PowerPoint Features

  • Analyze text in selected shapes
  • Process speaker notes
  • Work across multiple slides

All Applications

  • Preset management and sync
  • Custom entity support
  • Encryption key management
  • Deanonymize encrypted content
  • Token balance display

Signing In

  1. Open the add-in panel
  2. Click Sign In
  3. A browser window opens
  4. Sign in with your anonymize.today account
  5. Complete 2FA if enabled
  6. Return to Office - you're signed in

Your session persists across Office apps and restarts for up to 30 days.


Using Presets

Your presets sync automatically from your anonymize.today account:

  • Select a preset from the dropdown
  • Entity types are automatically selected
  • Create new presets in the web app or Settings

Learn more in the Presets documentation.


Troubleshooting

Add-in doesn't appear in ribbon

  1. Check that the add-in is installed (Insert → Get Add-ins → My Add-ins)
  2. Restart Office
  3. Clear Office cache and try again

Can't sign in

  • Check your internet connection
  • Disable any VPN temporarily
  • Clear browser cookies and try again
  • Try incognito/private browsing for the sign-in

Analysis not working

  • Ensure you have text selected
  • Check your token balance
  • Try signing out and back in

Changes not applying

  • Make sure you clicked "Apply" after selecting entities
  • Check if document is in read-only mode
  • Try selecting a smaller text range

Uninstalling

  1. Go to Insert → Get Add-ins → My Add-ins
  2. Find anonymize.today in the list
  3. Click the three dots menu
  4. Select Remove

Related Documentation

Last Updated: February 2026