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MCIF file extension

The table below provides useful information about the .mcif file extension. It answers questions such as:

  • What is the .mcif file?
  • What program do I need to open a .mcif file?
  • How can the .mcif file be opened, edited or printed?
  • How can I convert .mcif files to another format?
  • Where can I find the specifications for .mcif?
  • Which MIME-type is associated with the .mcif extension?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

Macromolecular CIF File

MCIF file is a Macromolecular CIF File. Macromolecular CIF (mmCIF) is a flexible and extensible tag-value format for representing macromolecular structural data.
MCIF format description not yet available
Category: Data files
Application: Open Babel
Mime-type: chemical/x-mmcif
Magic number: -
Magic string: -
Sample: -
MCIF aliases:
MCIF related links:
MCIF related extensions:
Crystallographic Information File

Other types of files may also use the .mcif file extension.

The .mcif file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cif, mif, mci, mcf, msif, mdif, mcfi

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Roxio Easy CD Creator Image
MyLabel Designer Deluxe Data
MapInfo Interchange Format Data
Microsoft Shell Console Script
ColorImpact File
Magick Image File Format Image
Xilinx CORE Generator Memory Initialization File
Autodesk Maya Initial Fluid Cache
CIF RAW Video File
mAirList Inline File

Can't open a .mcif file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .mcif file association, check the FAQ.

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .mcif file extension, write to us!

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