All of a sudden I can no longer open excel files by double clicking on the file icon. I can still open files by using the open dialogue box but not by double clicking those, for example, those in windows explorer. Right clicking on the icon and and then on the open menu item does not work either.It happens on both my own files and those from others sent as attachments. I can double click on Word and other programmes' files and they open as normal. Have tried to restore but did not have a restore point to go back to.
Any suggestions much appreciated
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