Message Shown After Iobit Uninstalled Files Etc

Hi,
I installed DoneEx which wasnt quite what i was looking for so i uninstalled it using UIobit uninstaller.
I restarted the pc for good measure etc.

When i now open any excel document i get a message pop up telling me that this programme etc cant be found & to check my spelling etc followed by its path.

I have looked in Iobit again & nothing is shown for this.
I have also looked in Add/Remove programmes and also nothing there.

How can i stop this message now it has been uninstalled.

Windows 7 32 Bit

 

Right click on one of the files and select Open with > Choose default program...
Select the program you wish to open the file with and make sure that Always use the selected program is checked.

 

Thanks very much once again