.MRZ

.MRZ File Extension

Learn what a .mrz file is, what it is used for, which programs can open it, and how to convert or troubleshoot this file format.

Data File Extension Guide 16 Searches
.MRZ
Machine Readable Zone Data

Quick Facts

Basic information about this file format

Extension
.MRZ
File Type
Machine Readable Zone Data
Category
Data
Best first step
Use compatible software

Quick Summary

A practical overview of the .mrz file format

The MRZ (Machine Readable Zone) file format is a specialized data structure used primarily in identity documents such as passports, visas, and national ID cards. It contains specific biographical information encoded in a standardized format defined by the International Civil Aviation Organization (…

File extension .MRZ
File type Machine Readable Zone Data
Category Data
Recommended action Open with a trusted compatible app

How to open a .mrz file

Start with a trusted app that supports this format

  • Check the file extension carefully and confirm that the file name really ends with .mrz.
  • Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
  • Update the application if the file was created by a newer version of the software.
  • Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.

What is a .mrz file?

File extension details and usage information

The MRZ (Machine Readable Zone) file format is a specialized data structure used primarily in identity documents such as passports, visas, and national ID cards. It contains specific biographical information encoded in a standardized format defined by the International Civil Aviation Organization (ICAO) Document 9303. An MRZ file typically stores the text found at the bottom of a passport data page, which includes the holder's name, document number, nationality, date of birth, sex, and expiration date, along with various check digits to ensure data integrity. While not a traditional file format used for general storage, MRZ data is often saved in text or proprietary data files by identity verification software, border control systems, and mobile scanning applications. These files are essential for automated identity verification, allowing systems to quickly parse and validate personal information without manual data entry. The format is strictly structured, relying on specific character sets and fixed-width fields to ensure global interoperability between different countries' scanning hardware and database systems.

Software Compatibility

Programs that may open or work with .mrz files

Windows

Compatible applications

Notepad Compatible
Notepad++ Compatible
Custom OCR SDKs Compatible
Identity Verification Suites Compatible

macOS

Compatible applications

TextEdit Compatible
BBEdit Compatible
Custom OCR SDKs Compatible

Linux

Compatible applications

Vim Compatible
Nano Compatible
Gedit Compatible
OpenCV-based custom parsers Compatible

Mobile

Mobile applications

Passport Reader Apps Compatible
ID Scanner SDKs Compatible
Custom Enterprise Verification Apps Compatible

Can .mrz files be converted?

Options for saving or exporting this file to another format

In many cases, a .mrz file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.

  • Use the original software that created the file when possible.
  • Check whether the application supports exporting to common formats.
  • Be careful with online converters when working with private, business, or sensitive files.
  • If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .mrz file.

Why can't I open a .mrz file?

Common reasons this file type may not open correctly

Wrong software

The file may require a specific program that supports the .mrz format.

Incorrect extension

The file extension may have been renamed manually, even though the actual file format is different.

Corrupted file

The file may be incomplete, damaged during download, or transferred incorrectly.

Outdated app

Your software may need to be updated before it can open newer versions of this file format.

Frequently Asked Questions

Common questions about .mrz files

To open a .mrz file, use software that supports this file format.

  • Notepad
  • Notepad++
  • Custom OCR SDKs
  • Identity Verification Suites
  • TextEdit

Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.

  1. Verify that the file extension is correct.
  2. Install or update compatible software.
  3. Try another application that supports this format.
  4. Check whether the file is corrupted, incomplete, or encrypted.

A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.

File safety tips

Use caution with unknown files

Only open files from trusted sources. Before opening a .mrz file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.