Export to Excel in Records working in Tempo but not in Grid

Hi All,

I have a Record type configured in a Grid and the Grid i have configured some set of columns which are coming from the Record Type.

The Export to excel button works in Tempo.

However in the Grid when we configure the Export to Excel button It is throwing an error. 

It says expression evaluation error at function if parameter 2 line 73 invalid symbol found comma.

But when i validate the interface it is working fine.

Can someone help me out.

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