Most regions of the world use a numbering system that is often called Roman or European (1, 2, 3, …). However, the numbering system in Arabic is different; it is derived from Hindi or Indic numbers.Although Arabic letters are written from right-to-left, numbers in Arabic are written from left-to-right. This numbering system is often called Arabic-Indic.You can insert language-specific numbers in text or captions if your locale, such as Arabic (Egypt), supports it. The following locales support this feature:The options described in this Help topic are available only if support for the appropriate language is enabled through Microsoft Office Language Settings.