Hello, the automatic saving function of ET software, find the temporary folder of ET before automatic saving, find (the last correct temporary folder before a crash) and open it. ET version is different, so it may not be opened. For example, it used to be ET2009, and it may not be opened with ET2009 software, or it may be caused by software system error or file loss. You should choose the correct format to open the ET file, because the ET file.