REPLACEB function
Replaces characters within text
Legacy DBCS byte-oriented replace function. Microsoft deprecates REPLACEB; prefer REPLACE for new workbooks. This local model counts Latin-1 and half-width kana as one byte and other code points as two; an incomplete double-byte character in a slice becomes a space. It is not a UTF-8 storage measure. Native Excel byte behavior depends on language and workbook settings, and full native locale compatibility remains unverified.
Syntax
REPLACEB(old_text, start_num, num_bytes, new_text)Square brackets indicate optional arguments.
Arguments
| Argument | Required | Meaning |
|---|---|---|
| old_text | Yes | Text in which you want to replace some characters."Univer" |
| start_num | Yes | The position of the character in old_text that you want to replace with new_text.1 |
| num_bytes | Yes | The number of bytes in old_text that you want REPLACEB to replace with new_text.0 |
| new_text | Yes | The text that will replace characters in old_text."Hello " |
Try REPLACEB
Replace a byte span without shifting the wrong character
=REPLACEB(A2,4,3,"X")Replace bytes 4–6 (B字) with X and retain C at the end. This example uses a legacy double-byte character set (DBCS): A, B and C use one byte each; 漢 and 字 use two each. Byte positions are A=1, 漢=2–3, B=4, 字=5–6 and C=7. These positions differ from UTF-8 storage sizes. Microsoft deprecates the B-suffixed function; prefer the corresponding character function for new workbooks. Native byte counting depends on language settings.
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REPLACEB · top-level call
=REPLACEB(A2,4,3,"X")Follow the cells behind a result
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The worksheet runs locally. Published checks apply to the supplied example only. Native Excel and Google Sheets compatibility remain unverified.
Reference and compatibility
Univer 1.0.4 / Apache-2.0. Calculation checks cover the supplied examples only. The browser worksheet does not implement every Excel feature, external service or connected data type.