What is the VHDL file format?
A file with the .VHDL extension is a file known as Quartus II VHDL Design. This format is associated with Altera.
The reliable way to open a .VHDL file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.
We are still gathering the list of programs that open .VHDL files. A fully verified, hand-written description of this format is being prepared; until then, the details on this page are drawn directly from our database.
Format details
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