A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
The following has to be done on a computer where the error message occurs.
If the error message states that Date is an unknown function, end macro execution, and select Tools | References... in the Visual Basic Editor.
The references in use are displayed at the top of the list; their check boxes are ticked.
There may be a reference in use whose name starts with MISSING:. If so, clear its check box, then click OK.
Next, select Debug | Compile <projectname>. Hopefully, you won't get an error message about the Date function.