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 from the menu. In the resulting dialog box, make sure the box labeled “” 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 option from the menu. Use the defaults by clicking the 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 option under the menu. |
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