Not able to locate a sheet error appears every time when I launch Excel

[Culpritism]

I keep getting the following message when I try to close a file "Cannot find 'C:\Program Files\Microsoft Office\Office11\Library\adaytum.xla'!AdaytumSheetC lose, which has been assigned to run each time [filename] is closed. Continuing could cause errors. Cancel closing [filename]. I never set up any kind of file to run when closing. I did originally receive this file from someone else. How can I remove this so I don't get this message every time I close the file.

[Gania]

There is a link below from support.microsoft. This link provides information and troubleshooting tips on the error. Just read the same. The error usually appears when there is a kind of registry conflict between different version of Excel installed on your system. Read the solution properly and then check back again. I hope this can help you out. "Cannot find the file" error message when you try to open a workbook by double-clicking the .xls file

[Alfons]

There is a fix available on the below link. Try to download and run the same. This is a error for sending the command to the program. But the fix also fixes other issue occurring on the application.
Excel Error: There was a problem sending the command to the program