RB9 invoices can be exported in LEDES format. The Legal Electronic Data Exchange Standard (LEDES) was developed in 1995 by the accountants at Price Waterhouse and a consortium of time and billing software developers to streamline legal billing by using a simplified system of standard codes. LEDES is designed to improve accuracy and efficiency by ensuring electronic invoices are complete and can be imported directly into billing systems, without manual entry.
Over the years, many file formats were developed. However, LEDES 1998B is the only format RB9 supports. LEDES 1998B was adopted in 1998, and it is by far the more commonly used LEDES format. It lacks some flexibility, having a rigid structure. Another disadvantage of LEDES 1998B is that invoice-level data is repeated on every line item even though it is only needed once, as it does not vary per line. Nonetheless, law firms prefer it for its simplicity and familiarity.