1、Click the Crash Recovery Button in Toolbar ;
![enter image description here][1]
2、Then Click Project where the document is in ;
3、System will automatically save at large ten files you previously saved.
4、Choose the file you want to recover and click Recover button
![enter image description here][2]
[1]: /editor/20151102/56371a3858b6d.png
[2]: /editor/20151102/56371a3d4c87c.png
