Excel 2007 Hangs when opening a .XLSM workbook

I recently had a massive amount of scripting in a workbook. I saved it, but when I tried reopening it, it froze. I almost cried.

First, try repoening it while pressing Shift (this disables the macros)

If no success

To fix it:
* Click the Start Menu then select Run. Type "regedit" (without the quotation marks) into the Run dialog box and click OK.
* Select My Computer at the top of the Registry tree in the left pane of the Registry Editor.
* Then backup the registry by selecting File - Export from the Registry Editor menu, entering a name for the registry backup file and clicking OK.
* Navigate the the following registry key: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Excel\Security
* With the "Security" key highlighted, select Edit - New - DWORD Value from the Registry Editor menu.
* Type "ExcelBypassEncryptedMacroScan" (without the quotation marks) for the new value name and hit enter
* Then double-click on the newly added value and change the DWORD Value from 0 to 1 and then click OK.
* Exit the Registry Editor and the exit and restart Excel 2007 for the change to take affect.