D2E file format description

Many people share .d2e files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .d2e file can be edited, converted or printed with. On this page, we try to provide assistance for handling .d2e files.

1 filename extension(s) found in our database.

.d2e - Gaussian Two-Electron Integral Derivative File

The D2E data files are related to Gaussian. The D2E file is a Gaussian Two-Electron Integral Derivative File. Gaussian provides state-of-the-art capabilities for electronic structure modeling.

Data files
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Gaussian Two-Electron Integral Derivative File related extensions:
Gaussian Checkpoint File
Gaussian Cube Data
Gaussian Formatted Checkpoint File
Gaussian 94 Data
Gaussian Input Data
Gaussian Input Data

Naturally, other applications may also use the .d2e file extension. Even harmful programs can create .d2e files. Be especially cautious with .d2e files coming from an unknown source!

Can't open a .d2e 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 can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .d2e file extension is often given incorrectly!

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

c2e, d2, d2d, d2f, d2r, d2s, de, de2, dee, dwe, e2e, s2e, v2e, w2e

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

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eXtendable Wad Editor DE2 Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> D2E file