I have a problem to open a AutoCad 2D drawing file. The AutoCad LT message " Drawing File is not valid". Before this incident happens, the program was crashed, long time for file saved and even the program suddenly shutdown. And I was try to use the recovery function but it was not work. Please Advice.
It may be a dead/corrupt file: try to use INSERT to place it into a working template file.
After that, look for your BAK file that should not be too much older if you manually saved regularly. And also look for the autosave file in your Windows Temp folder (it will have an SV$ extension but usually carry your file name otherwise).
Then there is always your backup from the day before (if you backup daily) or the week before if you only backup weekly.
I don't know where can I find all the backup files or sv$ extension files from Window Temp folder. Would you tell me step by step. my laptop is Window XP OS system with 32 bits version.
I found it but I can't open it with AutoCad Application. it has no response on AutoCad program. Please tell me how to open that sv$ autosave file.
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