如何使Excel文档在不同的窗口中打开？

这里有一个非常好的修改注册表的演练。在Server 2008中，它会稍有不同，但又足以使它有意义：

1. 以管理员身份运行注册表编辑器。如果不确定如何执行此操作，请打开“开始”菜单，然后搜索regedit.exe。右键单击该regedit.exe文件，然后单击“以管理员身份运行”选项。

2. 在注册表编辑器中，转到HKEY_CLASSES_ROOT\.xls键。您可以通过以下方法进行扩展：展开HKEY_CLASSES_ROOT节点，然后开始输入.xls，或者只是搜索.xls，或者向下滚动并寻找它。您应该会看到类似以下内容的内容：

在(Default)上面的屏幕快照中查看值Excel.Sheet.8。现在，转到中的键HKEY_CLASSESS_ROOT。换句话说，转到HKEY_CLASSES_ROOT\Excel.Sheet.8。

3. Expand the Excel.Sheet.8 key and you’ll see that it has several keys under it. One of those keys is named shell. Go ahead and expand the shell key too. you’ll see something like this:

Notice that the keys under shell correspond to the options you see when you right click on an excel file in Explorer. The idea is that we want to add an “open in new instance” option here. So, right click on the shell key, then choose New->Key.

Give the key any name you like. For example, OpenInNewInstance. When the key is created, double click on (Default) to give it a default value. The default value will be the option that you will see on the right click menu. So, for this example, we’ll use Open In New Instance. You should have something like this:

4. Add a new key under OpenInNewInstance. This time, name it as command. To set the default value of the command key, you will need the path to the EXCEL.EXE file. In Windows 7 64-bit and Office 2010 set the value to this:

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" "%1

If you have the same setup as mine, you can just copy the above. Otherwise, make necessary adjustments to match your setup. You should now see something like this.

5. That’s it! You’re done. Go to Windows Explorer and right click on any .xls file. You should now see your “Open in New Instance” option.

Click on “Open In New Instance” and Excel opens the workbook in a new application window. Right click on another .xls file and open it in a new instance, Excel opens it in yet another application window.

6. If that’s not enough, and you want this to be the default behavior. In other words, every time you double click an .xls file in Explorer, you want Excel to open it in a new application instance, then, there’s one simple step to do. Go to the shell key and set it’s default value to OpenInNewInstance

The instructions above allows you to add an option to the right click menu of *.xls files. Excel 2007/2010 files have a different extension (.xlsx or .xlsm). Just follow the same steps, but look for the correct extension (xlsx or xlsm instead of xls) in #2.

http://web.archive.org/web/20141014173336/http://www.excelqa.info/2011/06/17/how-to-open-excel-files-in-a-new-application-instance-windows-7-or-vista/