There is no default extension;
不存在默认扩展名;
Accept the default extension association and click Next.
接受默认的扩展关联并单击Next。
The file extension default based on the class name.
副档名预设值是根据类别名称而定。
The wizard does not provide a default file extension.
精灵不提供预设副档名。
The wizard does not provide a default file extension.
精灵不提供预设副档名。
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