Open D File
As simple as a single letter, the D file extension is nothing more than source code written in the D programming language.
The D file is similar to C++, but also influenced by C#, Java, and Eiffel.
D is a general purpose programming language born as a redesign of C++, with a more pragmatic approach, but it is not a language purely derived from the previous one.
D has retained some features of C++ and is also influenced by concepts from other languages such as Java, C#, and Eiffel.
The D extension file can be opened and edited in a text editor, but requires a D compiler to be compiled into an executable program.
But what is a compiler?
To work with a D file (and other source code files) you must understand what a compiler is.
It is Software that translates a program written in a high-level programming language (C/C++, COBOL, D, etc.) into machine language.
A compiler generally generates assembly language first and then translates the assembly language into machine language.
A utility known as a 'linker' combines all the necessary machine language modules into one executable program that can be run on the computer.
A compiler is one of the pillars of programming and how to understand the communication between a high-level language and a machine.
Being able to know how this intermediate step works will allow us to develop and program high-level languages in a more precise way.
Software to open and work with a D file
Because it is a plain text file, the goal of working with a D file must be established, whether it is to write over it or to compile it.
If anything, several links are shown that are capable of editing, creating, and working with a D file.