| EiffelStudio Source | |
| Eiffel Software | |
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E is a single-character file extension associated with EiffelStudio software development environment, which allows users to develop applications using Eiffel programming language. EiffelStudio is a multiplatform software available for such systems as Windows (.NET), Linux, Unix, or MacOS.
E files store data in form of scripts required by EiffelStudio IDE to perform its functions. Two versions of this software are available – a commercial package (accessible after contacting the distribtor) and an Open Source package.
Windows
| .a | Unix Static Object Code Library Format |
| .a2w | Alice Program World Format |
| .actx | DS Game Maker Action Description Format |
| .ada | ADA Language Source Code Format |
| .addin | Microsoft Visual Studio Addin Format |
| .ads | Ada Package Specification |
| .agi | Asterisk Gateway Interface Format |
| .alb | Alpha Five Data Dictionary |