A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi
Thank you for posting your query. My name is Clarence, I'll be more than happy to assist you with your concern.
To resolve your query kindly do the steps below.
The solution involves making little changes in the registry so i recommend making back up for just in case:
strart - run - regedit:
Left column
HKEY_CLASSES_ROOT/Excel.Sheet.8/shell/Open/commend:
Right column {adding (space)"%1"}
Double Click on (Default) and write - "C:\Program Files\Microsoft Office\Office12\EXCEL.EXE" /e "%1"
Right Click on Command – choose "rename" and add something to the name - for example 2 (commend2).
Left column
HKEY_CLASSES_ROOT/Excel.Sheet.8/shell/Open/ddeexec:
Right Click on the folder ddeexec and choose "rename" and add something to the name - for example 2 (ddeexec2)
Left column
HKEY_CLASSES_ROOT/Excel.Sheet.12/shell/Open/commend:
Right column {adding (space)"%1"}
Double Click on (Default) and write - "C:\Program Files\Microsoft Office\Office12\EXCEL.EXE" /e "%1"
Right Click on Command – choose "rename" and add something to the name - for example 2 (commend2).
no restart needed.
Go to this link for your reference and other troubleshooting procedures https://answers.microsoft.com/en-us/msoffice/forum/all/stop-excel-files-from-opening-in-the-same-window/53f8144b-bccf-4260-a7b0-a0179d271527
Do not hesitate to message us if you need further assistance.
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Best Regards,
Clarence