Anonymize a file for AI — guides by format

Data Alias reads your file in the browser tab, suggests which values to replace, and gives you back a copy in which names, emails, phone numbers, and account IDs have become stable aliases like PERSON_001. The file itself is never uploaded. What changes from format to format is what can be read out of the file and what comes back — a spreadsheet returns a spreadsheet, while a PDF returns a text extract. Each guide below states that plainly for one format.

Detection is a suggestion, not a verdict. Data Alias reduces exposure risk but cannot guarantee it finds every sensitive value, which is why every guide ends at a review step you control rather than an automatic export.