I have a file that I can't save. When I try to save the file I get the following error message.

Error: was open for write
Your file could not be saved.

I really need suggestions I have a lot of work into this file. I have run purge, audit, and recover on this file. When I run recover it comes back saying that --- Ubable to recover, It contains incorrect or corrupt information that is to extensive for repair.

However the program will open the file,

It may help to create a write block of the drawing. Make sure everything you want is visible. Use 0,0,0 as a base point. Use a window to select the objects. Do not use the "all" option.
(This may weed out the corruption)