I would like to create a conversion file to validate a flow member when importing transaction data in the Excel client in BPC NW 7.5. For example if the Account Range = A300-A400 then Flow dimension equals F_NA. Can this be done in the formula in the conv

I would like to create a conversion file to validate a flow member when importing transaction data in the Excel client in BPC NW 7.5. For example if the Account Range = A300-A400 then Flow dimension equals F_NA. Can this be done in the formula in the conversion file or in the transformation file?