Ventura Publisher Hyphenation Algorithm is a file that is given the HY2 extension format. Every computer filename ends in a period followed by a three-letter extension that identifies the file type. This three-letter suffix indicates the encoding or file format used to create the file, and identifies the associated program that will enable users to open and view the document. Windows, for example, will prompt users to select a program to try opening a file if it does not automatically identify the file format. Double-clicking the file will allow the PC to decide which default application should open the file. When encountering the HY2 file extension, users can use Notepad or another text editor to open the file. A text editor like Notepad may be able to display the file contents since some extensions are only text-files. Another option is to convert the HY2 file to another format by using a File Conversion Online Service or a software program that can convert the HY2 to another file format.