I want to replace zero with blank

I have a checkbook spread sheet. I would like for the cells to display blank instead of $0.00

Use number format code [$$-409]#,##0.00;[RED]-[$$-409]#,##0.00; (or similar, corresponding to your locale’s currency and display format, note the trailing semicolon that denotes an empty display string for 0) which is an equivalent of [>0][$$-409]#,##0.00;[<0][RED]-[$$-409]#,##0.00;"" and in fact after saving to .ods and reloading becomes such.