根据文件特征码进行文件类型检查--VB.NET源码

<?xml version='1.0' encoding='utf-8'?> <SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" UseMySettingsClassName="true"> <Profiles> <Profile Name="(Default)" /> </Profiles> <Settings /> </SettingsFile>