2012

Table Of Contents
you save a drawing, the previous version of your drawing is saved to a file
with the same name and a .bak file extension. The backup file is located in
the same folder as the drawing file.
You can revert to your backup version by renaming the .bak file in Finder to
a file with a .dwg extension. You may want to copy it to a different folder to
avoid overwriting your original file.
Save Your Drawing Automatically at Specified Intervals
If you turn the automatic save option on, your drawing is saved at specified
time intervals. By default, files saved automatically are temporarily assigned
the name filename_a_b_nnnn.sv$.
Filename is the current drawing name.
a is the number of open instances of the same drawing file in the same
work session.
b is the number of open instances of the same drawing in different work
sessions.
nnnn is a random number.
These temporary files are automatically deleted when a drawing closes
normally. In the event of a program failure or a power failure, these files are
not deleted.
To recover a previous version of your drawing from the automatically saved
file, rename the file using a .dwg extension in place of the .sv$ extension before
you close the program.
See also:
Recover from a System Failure (page 59)
Recover from a System Failure
A hardware problem, power failure, or software problem can cause this program
to terminate unexpectedly. If this happens, you can restore the drawing files
that were open.
Resolve Drawing Files
After a program or system failure, the Files Recovered dialog box opens the
next time you start AutoCAD for Mac. The Files Recovered dialog box displays
Repair, Restore, or Recover Drawing Files | 59