This method returns a byte array which you can then save to an output file, such as an image file or an Excel spreadsheet, depending on the requested format.
该方法返回一个可以在以后保存到输出文件的字节数组；取决于请求的格式，输出文件可以是图形文件或Excel电子表格。
The Save as dialog includes a very large number of output file formats, as it is the standard method by which users will generate their final image files.
另存为是用户输入最后图象文件的规范方法，因而对话框中有输入多种文件体例的挑选。
The Save as dialog includes a very large number of output file formats, as it is the standard method by which users will generate their final image files.
另存为是用户输出最终图像文件的标准方式，因此对话框中有输出多种文件格式的选择。
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