Guides
Guides & Tutorials
Step-by-step guides for working with MBOX and EML email archives on your Mac — exporting Gmail, opening huge files, converting formats, and searching like a pro.
- Tutorial
How to Export Gmail with Google Takeout (and Open It on Mac)
A step-by-step guide to exporting your Gmail to an MBOX file with Google Takeout, downloading it safely, and opening it instantly in Mbox Viewer on macOS.
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How to Open an MBOX File on Mac (Even Huge Ones)
Learn what an MBOX file is and the fastest way to open one on macOS — including multi-gigabyte archives from Gmail — without importing or waiting, using Mbox Viewer.
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How to Convert MBOX to CSV, EML, and Text (and Extract Attachments)
A practical guide to exporting an MBOX file into CSV spreadsheets, individual EML messages, plain text, and PDF — plus how to extract every attachment in bulk — using Mbox Viewer on Mac.
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Mbox Viewer Search Syntax Cheat Sheet
A complete reference for searching MBOX and EML archives in Mbox Viewer: from:, to:, subject:, body:, date:, has:attachment, size:>, OR, negation, and exact phrases — with copy-ready examples.
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How to Open a Thunderbird MBOX File on Mac
Thunderbird stores your mail in standard mbox files — they just have no extension. Here are two easy ways to read them on macOS with Mbox Viewer, without importing anything.
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How to Open an Apple Mail Export (.mbox Folder) on Mac
Apple Mail exports a .mbox folder with a file named “mbox” inside — that file is your mail in standard mbox format. Here's how to export from Mail and read the result with Mbox Viewer.
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