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Topic: Mathematica 9 does not read mathematica 8 ".mx" files
Replies: 8   Last Post: Dec 18, 2012 2:35 AM

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Posts: 2
Registered: 12/11/12
Re: Mathematica 9 does not read mathematica 8 ".mx" files
Posted: Dec 14, 2012 2:58 AM
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Thanks for your reply!
yes, that's what I had to do ... rerun the whole calculation on M9 which
again took a few hours!! (I know ... not good at optimizing code)
But then what is the purpose of having .mx files to save the workspace
variables for future use ... if they can only be read by the version in
which they have been produced ... it is senseless ...

On Tue, Dec 11, 2012 at 9:03 PM, Bob Hanlon <> wrote:

> I've never used an .mx file; however, from the documentation:
> "MX files cannot be exchanged between different operating systems or
> versions of Mathematica."
> "Mathematica MX files can be created with DumpSave and read with Get."
> Did you save the source files from which you did a DumpSave? If so,
> move the source files to v9 and DumpSave new .mx files in v9.
> Bob Hanlon
> On Tue, Dec 11, 2012 at 2:24 AM, NBM <> wrote:

> > Having written a lot of code on M8, I recently switched to M9 and tried
> to
> > run the code which starts by loading an .mx file written by M8, but M9
> wouldn't read it saying that it was written on another machine. This is a
> major incompatibility issue between M8 and M9. Fortunately I kept my M8
> installation, so for now, M9 is useless to me.

> > Please a solution.
> >


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