Filename extensions – Can’t open .exe files?
Every filename has a name and a three-character filename extension with the exception of the latest versions of Microsoft Office products that have four characters. This extension typically defines the type of file. For example, files ending in .doc are Word documents while files ending in .xls are Excel sheets. When you double-click a file that ends with an .exe extension, the system will attempt to execute the file. If you change the extension of an executable file, the file will still contain executable instructions; however, the system will not attempt to execute the file because it does not recognize the filename as an executable file type. To change the associate program of a file you right-click the filename from windows explorer and click the properties menu. The file properties window opens:
Categories: Troubleshooting Tags: .exe, assoc, command prompt, filename extensions