This article describes the formula syntax and usage of the REPLACE and REPLACEB function in Excel.
REPLACE replaces part of a text string, based on the number of characters you specify, with a different text string.
REPLACEB replaces part of a text string, based on the number of bytes you specify, with a different text string.
These functions may not be available in all languages.
REPLACE is intended for use with languages that use the single-byte character set (SBCS), whereas REPLACEB is intended for use with languages that use the double-byte character set (DBCS). The default language setting on your computer affects the return value in the following way:
REPLACE always counts each character, whether single-byte or double-byte, as 1, no matter what the default language setting is.
REPLACEB counts each double-byte character as 2 when you have enabled the editing of a language that supports DBCS and then set it as the default language. Otherwise, REPLACEB counts each character as 1.
The languages that support DBCS include Japanese, Chinese (Simplified), Chinese (Traditional), and Korean.