I only way I know of doing this is to create the CSV "manually" as below. You then do not need Parse JSON in the Flow as it is already in the proper format
Set(
varCSV,
"ID,Title,Description,Project Status,Analyst,Manager,Creation Date,Launch Date,Completion Date,Type,Category,Product,BU,Region,Market" & Char(10) &
Concat(
AccessLevelTable,
ID & "," & Title & "," & Description & "," & 'Status (ProjectStatus)' & "," & Analyst & "," & Manager & "," & Creation_Date & "," & Launch_Date & "," & Completion_Date & "," & Type_T & "," & Category_T & "," & Product_T & "," & BU_T & "," & Region_T & "," & Market_T & Char(10)
)
)
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