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How do I ignore/remove the resource fork from a Macintosh notebook?

A description on the resource fork is available from http://support.wolfram.com/archive/mathematica/binary.html.

Ignoring the resource fork

If you think you have a corrupted notebook, chances are that the corruption lies in the resource fork. To ignore the resource fork when opening a notebook, select Open Special from the File menu. In the resulting dialog box, make sure the box labeled “Ignore binary data in resource fork” is checked.

Removing the resource fork

There are several ways to remove a resource fork from a notebook. You would probably want to do this if the resource fork of a notebook was corrupted or if you want to reduce the size of a notebook.

You can force Mathematica to save a notebook with a much smaller resource fork. You do this by selecting the Save As Special option from the File menu. Use the defaults by clicking the OK button, and the resulting notebook will have a very small resource fork.

A utility called ClearRes is available via anonymous ftp to MathSource. Dragging the icon of a notebook, or any file, onto this utility automatically clears the resource fork.

An application called ResEdit (available from Apple Computer's Support Site) allows you to open and view the contents of a file's resource fork. You can use this application to completely remove the contents of the resource fork of a Mathematica notebook. As a precaution, you should only do this on a copy of the notebook.

You can use a text editor (SimpleText included with your System Software, BBEdit from Bare Bones Software) or word processor to open the notebook as a plain text file, then save it under a new file name. Of course, it won't have the Mathematica notebook icon, but you can still open the file with the Open option under the File menu.

Download this FAQ as a Mathematica 5.2 Notebook






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