.MA file extension

To open .MA files on Windows, try opening the .MA file in Wolfram/Mathematica software (e.g., Wolfram Desktop/Mathematica) using File > Open.

To open a .MA file, use Wolfram/Mathematica software that supports .ma notebooks. If it won’t open, the file may be a different (non-Wolfram) .ma format, so confirm what program created it.

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Last updated: June 11, 2026 · Reviewed by Julian Stricker

What “reviewed” means on this page

Format fit: whether the “what is this file?” description matches common real-world use of the extension, including category, typical MIME types, and aliases.
Opening paths: whether Windows / macOS / Linux steps read plausibly for current OS dialogs and default apps; we remove fantasy menus and unsafe shortcuts.
Security framing: whether risk notes match the extension class (for example executables vs plain data) and whether affiliate wording does not contradict the security section.
Sources and further reading: whether external links point to vendors, standards bodies, or other primary references where possible; we avoid inventing details we cannot ground.
Limits: this is clarity and safety-messaging QA, not a guarantee that every statement is exhaustive or that every binary you download is harmless.

Full methodology in the Imprint — The Imprint also states where AI is used and what that does—and does not—replace.

Open on your device

Choose your operating system for a dedicated step-by-step opening guide.

How to open .MA files

Use these platform-specific instructions to open .MA files safely.

Windows

Try opening the .MA file in Wolfram/Mathematica software (e.g., Wolfram Desktop/Mathematica) using File > Open.
If double-clicking opens the wrong program, right-click the file → Open with… → choose the Wolfram app (or browse to it).
If it still fails, ask the sender what created the file, because .ma can also refer to non-Wolfram formats.

Full Windows guide

Mac

Open the file from within Wolfram/Mathematica software using File > Open.
If macOS uses the wrong default app, Control-click the .MA file → Open With → choose the Wolfram app (or Other… to locate it).
If the file won’t open, confirm the producing application; the .ma extension is used by multiple formats.

Full Mac guide

Linux

In your file manager, right-click → Open With → select a Wolfram/Mathematica-compatible application if installed.
If your desktop recognizes it as application/mathematica, use the suggested Mathematica/Wolfram app and try opening via the app’s File > Open.
If no suitable app is available, transfer the file to a system with Wolfram software and open it there.

Full Linux guide

iOS

iOS typically does not provide reliable native support for .MA; if Files can’t preview it, transfer it to a desktop system with Wolfram/Mathematica software and open it there.

Full iOS guide

Android

Android typically does not provide reliable native support for .MA; if it won’t open in a trusted app you already have, transfer it to a desktop system with Wolfram/Mathematica software.

Full Android guide

Security notes

.MA files associated with Mathematica/Wolfram workflows may contain executable Wolfram Language code; only open and evaluate content from sources you trust.
Treat unexpected .MA attachments as potentially unsafe: even if the file is “just data,” it can trigger risky behavior when evaluated or interpreted by a powerful language environment.
Because .ma is an ambiguous extension, avoid installing random “.ma openers” suggested by the web; verify the producing application first.

If you did not expect this file

This extension is usually plain data, text, or structured content—not a program by itself. The practical risk is social engineering (a scam attachment or misleading filename). For trusted senders you rarely need heavy-handed antivirus wording; use these tools when you want an extra check on unexpected downloads.

Avast

Avast offers free and premium antivirus software that protects against viruses, malware, ransomware, and phishing. Scan files before opening them to ensure safety.

Norton

Norton 360 delivers comprehensive antivirus protection, VPN, and identity theft monitoring. Scan files for threats before opening to keep your device secure.

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Can't open this file?

These are the most common causes and fixes when .MA files fail to open.

Common reasons

The .MA file opens in the wrong app (or not at all)
It’s not a Wolfram/Mathematica file even though it ends in .ma
The file opens but content looks wrong or errors occur

Fix steps

Open the file from within Wolfram/Mathematica software using File > Open (instead of double-clicking).
Change the file association (Windows “Open with…”, macOS “Open With”) to your Wolfram app.
If you don’t have Wolfram software available, use a desktop that does, since mobile platforms often lack support.

OS-specific troubleshooting

What is a .MA file?

.MA is commonly used in the Wolfram ecosystem for notebook-related files and Wolfram Language content; Wolfram documentation lists .ma alongside notebook extensions such as .nb and .nbp. The IANA-registered media type application/mathematica and the freedesktop shared MIME database both recognize Mathematica-related content, which many desktop systems can use to suggest an appropriate app.

Background

In everyday use, .MA is most often encountered in workflows involving Mathematica/Wolfram Language, where it is used for notebook-related files and code/content intended to be opened by Wolfram tools. Wolfram’s documentation explicitly includes .ma among notebook extensions, so if you received a .ma from someone working in Mathematica, that is typically the correct opener.

On many Linux desktops and other environments that use the shared-mime-info database, .MA may be associated with application/mathematica (described as a “Mathematica Notebook file”), which helps the system pick a default application. On the web and in file exchange systems, application/mathematica is a registered IANA media type used to label Mathematica-related content.

Be aware that “.ma” is also used by multiple unrelated formats in the wider software world. If your file did not come from a Wolfram/Mathematica context, treat “Mathematica notebook” as the most likely meaning but verify the source application before installing or trusting any viewer.

Common MIME types: application/mathematica

Common .MA issues

The .MA file opens in the wrong app (or not at all)

Your system may not have a Wolfram/Mathematica-compatible app installed, or file associations may point to another program.

Open the file from within Wolfram/Mathematica software using File > Open (instead of double-clicking).
Change the file association (Windows “Open with…”, macOS “Open With”) to your Wolfram app.
If you don’t have Wolfram software available, use a desktop that does, since mobile platforms often lack support.

It’s not a Wolfram/Mathematica file even though it ends in .ma

.ma is used by multiple unrelated formats, so a non-Wolfram .ma won’t open correctly in Mathematica/Wolfram tools.

Ask the sender or check the source application that produced the file.
If possible, open the file in a plain-text viewer to see whether it looks like Wolfram Language text; if it is clearly not text, it may be another format and needs its own originating application.

The file opens but content looks wrong or errors occur

The file may be incomplete/corrupted, or it may depend on packages/resources not present on your system.

Re-download or re-copy the file (avoid email clients or tools that may alter attachments).
Try opening it on the sender’s setup or a known-working Wolfram installation to confirm the file is intact.
If it relies on additional resources, request the accompanying files or the project folder from the sender.

FAQ

What program opens a .MA file?

Most commonly, Wolfram/Mathematica software opens .MA files (Wolfram documentation lists .ma among notebook extensions). If your file came from another tool, it may require that specific application instead.

Is .MA the same as a Mathematica notebook (.nb)?

They are related in the Wolfram ecosystem: Wolfram documentation lists .nb, .ma, and .nbp as notebook-related extensions. However, .ma can also be used by other, unrelated formats, so the extension alone is not a guarantee.

Can I convert a .MA file by renaming it to .NB or something else?

No. Renaming only changes the filename extension. Use the originating software’s export/save options if you need a different format.

What MIME type is associated with Mathematica-related files?

application/mathematica is registered in the IANA media type registry. Some desktop environments also map Mathematica-related files using shared MIME databases.

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