How to Open NEF Files
A NEF file is a Nikon raw image file. NEF is an acronym for Nikon Electronic Format, and this file type may be referred to as a digital negative. A NEF file contains more information than standard image files, such as JPG or GIF. NEF files may be converted into other image file types by using a file conversion tool. However, Nikon provides a free tool for viewing and working with NEF files.
Instructions
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Download and install NEF Viewer from nefviewer.com.
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Right-click the NEF file you want to open to display the context menu.
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Click the "Open With" option.
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Click the "NEF Viewer" program link. The NEF file opens in the NEF Viewer program.
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