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MCIF File Extension

The MCIF file extension was created by International Union of Crystallography and is also known as the MacroMolecular Crystallographic Information File. MCIF is classified as a Data Files and The format of this file type has not been determined yet. You can open MCIF files in RasMol program.

MacroMolecular Crystallographic Information File Type

MacroMolecular Crystallographic Information File Type
Extension .mcif
Developer International Union of Crystallography
Popularity 5.0 (1 Votes)
Mime Type mime-type/not.available
Default Program RasMol
Category Data Files
Format Not Available
Updated 7/1/2025

What is a MCIF File Type?

The mmCIF was created to expand the capabilities of the .CIF file format. The format is very close to the CIF format, but can also store magnetic space groups, which became a necessity after Harold T. Stokes and Brandon J. Campbell extended the CIF dictionaries by adding magnetic tags.

Free Online MCIF Tools & Apps

Access powerful and secure free online MCIF tools to convert, view, edit, merge, split, and compare MCIF files — all without installing any software. Our tools support the .MCIF (MacroMolecular Crystallographic Information File) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your MCIF files directly from your device with ease.

MCIF Files Common Issues

There are few common issues with the MacroMolecular Crystallographic Information File .MCIF File Extensions while opening the .MCIF files on Windows and MacOs, we have solution to those issues such as:

Can't Open MCIF Files?

  1. You must have supported software programs installed for MacroMolecular Crystallographic Information File on your system such as RasMol.
  2. Associate default Rasmol RasMol program for *.mcif (MacroMolecular Crystallographic Information File) files.

    Associate MCIF Default Program on Windows
    1. Right-click a *.MCIF (e.g example.mcif) file and click Open With.
    2. In the Open with dialog box, click Rasmol RasMol program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .mcif files.

    Associate MCIF Default Program on MacOs
    1. Click *.MCIF (e.g example.mcif) file and click information -> Open With.
    2. In the programs list, click Rasmol RasMol program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .RasMol extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related MCIF File Extensions

MCIF default file extension is .MCIF and other similer related extensions are:

All Platform Software Programs for MCIF File Extension

List of all softwares that can open the MCIF files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open MCIF File on Windows

Software License Developer
RasMol image. RasMol 000 for Windows Free RasMol
Microsoft Windows Media Center image. Microsoft Windows Media Center 000 for Windows Included with OS Microsoft

MacOs logo image - FileProInfo.comOpen MCIF File on Mac OS

Software License Developer
CIFTr image. CIFTr 000 for MacOs Free CIFTr

Linux logo image - FileProInfo.comOpen MCIF file on Linux

Software License Developer
CIFTr image. CIFTr 000 for Linux Free CIFTr

Website logo image - FileProInfo.comOpen MCIF file on Web

Software License Developer
ISOCIF image. ISOCIF 000 for Web Free ISOCIF

iOS logo image - FileProInfo.comOpen MCIF file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen MCIF file on Android

Software License Developer

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

MCIF file extension icon image.About MCIF - MacroMolecular Crystallographic Information File

FileProInfo is to help you understand about the MacroMolecular Crystallographic Information File with *.MCIF suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for MCIF. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for MCIF, please let us know.

Updated 7/1/2025