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Re: File Corrupted

  • To: mathgroup at smc.vnet.net
  • Subject: [mg95201] Re: File Corrupted
  • From: David Bailey <dave at removedbailey.co.uk>
  • Date: Fri, 9 Jan 2009 06:26:23 -0500 (EST)
  • References: <gk3fbk$dtk$1@smc.vnet.net>

John wrote:
> I have a long notebook, which I intended to use in my class starting
> next week.
> 
> Today the machine hung up, and I got the following message:
> 
> There was a syntax error on line 14997 in the file temp1.nb
> 
> nherited, {10,5}
> 
> The highlighted error is a number in CellChangeTimes.
> 
> Is it possible to discard the error by discarding the file from the
> highlighted error to the end of the file?
> 
> John
> 
The entire contents of a notebook is one large Mathematica expression. 
Typically in a situation such as you describe, a notebook gets partially 
written over an earlier version, so there is one broken bit.

One way to proceed is to take a copy of the original file, and edit it 
with a text editor. It is usually possible to cut out one cell's worth 
of data (hopefully an output cell!) and create a file that will load. It 
may give a warning about the cache being corrupt, but you can ignore that.

If it loads, save it somewhere else, and invest in a good backup mechanism!

David Bailey
http://www.dbaileyconsultancy.co.uk


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