如果未设置此参数，则输出文件名为指定语言的目标文件夹、任意文件名和默认文件扩展名。

If this parameter is not set, the output file name is the destination folder, an arbitrary file name, and the default file name extension for the specified language.

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对于TSV格式，不同的是文件扩展名utf - 8为。tsv8，默认编码为。tsv。

For TSV format, the difference is that the file extensions are.tsv8 for UTF-8 and.tsv for the default encoding.

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有其它扩展名的文档，如果它们属于受支持的类型，而且其文件扩展名更改为默认扩展名的话，也可打开。

Documents with other extensions can also be opened if they are of a supported type and their file extension are changed to one of the default extensions.

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