How to recover AutoCAD DWG file ?

Tried to recover bak file, but there is no bak file in temporary files. AutoCAD didn’t recover the file itself. The version is 2014. There migt be some error occurred in saving process. Don’t know any solutions. Please help me to repair this file.

In the setting of AutoCAD options (options) in the File tab (the leftmost tab) there is a path autosave. There AutoCAD saves temporary files, usually with the extension ac $ (in the tab opening and saving) .You must look for it. Generally, if there are files, they can be found by date, and they can be seen the empty volume or not. To open them you need to simply rename, appending the extension DWG. the same can be done with the files with the extension bak. And yet there is a command in AutoCAD recover it allows you to open corrupted files.


DWG Repair Kit
This professional AutoCAD DWG repair tool features a uniquely efficient data analysis core and an interface that both professionals and novices with appreciate. The program will show you how to repair DWG files online in seconds even if you have never worked with data recovery tools of any sort!

For more information: http://www.dwg.repair/

Also look here: https://social.technet.microsoft.com/Forums/en-US/fb2d8693-9551-43b7-9310-584471d60a56/autocad-files-corrupted?forum=w7itproappcompat