Excel 2007 - All files are being opened in the same window

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I have a problem with Excel 2007. All my files are being opened in the same window.


  • Go to explorer, choose tools, then folder options. Click the File Types tab.
  • Scroll down to the XLS extension. Click the Advanced button. Choose "open", then click the edit button.
  • At the end of the "Application used" entry, you'll probably see: /e
  • After this, add: "%1" (be sure to include the quotes.)
  • Then uncheck the "Use DDE" checkbox. Then click OK. (Windows re-checks it at some point for some reason, but it still works)
  • Click on OK
  • As from now on, you will be able to use multiple instances of Excel.

Thanks to zangiev for this tip.

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