How can I open an Excel file directly from the explorer in a new instance? The registry key disableMergeInstance has already been added but this doesn't have an effect on opening files from the windows explorer.


Create a shortcut for Excel.EXE file on the desktop (open its folder and use "RightClick - SendTo - to Desktop(create shortcut)", do not copy the shortcut from Main menu or QuickLaunch pane).

Drag the XLS/XLSX file over the shortcut - it will be opened in new, separate, Excel instance.

You can also open new Excel instance by Alt-Click on its icon or by starting it from command line by excel /x command (or create shortcut with this command) - separate process will be started, then open the file.

  • As said, it needs to open a new instance when a file in the explorer is clicked. The Excel instance from the taskbar was already enabled with the mentioned Registry key. – HYC Media Dec 6 '19 at 13:18
  • @HYCMedia when a file in the explorer is clicked You have not used the word "clicked" or similar. You have told that you need in separate instance. In general it is impossible - or I'm afraid that you must create your own handler library. – Akina Dec 6 '19 at 17:13
  • oh yes, I'm sorry. So there is also no way to add like the /x parameter on startup in the registry somewhere? – HYC Media Dec 9 '19 at 7:27

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