48.77Mstl148.77Mbin2203, but there will be an error when opening the bin file software. There is no problem for downloading stl directly, and it is invalid for bin to change the stl suffix. In this case, how to restore the bin file to stl??

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stl file can be downloaded and opened by netfabb,

related files are available on the network disk: https://pan.baidu.com/s/1JeiV.