Expenditure - Expenses - Cost

Are 'expenses' best described as a group of 'expenditures'?
Do you 'find and calculate one expense' in your MS Excel sheet named 'Expenditure screening'?

OR, do you 'find and calculate one expenditure' in your MS Excel sheet named 'Expenditure screening?

OR, do you 'find and calculate one expense' in your MS Excel sheet named 'Expenses screening'?

OR, do you 'find and calculate one cost' in your MS Excel sheet named 'Cost screening'?

What would be the most appropriate and used? Any usage difference between BR and US? Like to have the BR way in that case.