what is this B at the end of functions Search and Replace in Excel SearchB and ReplaceB

I have seen functions SearchB and ReplaceB in Excel, but i have never seen any example of these.  

Microsoft support page defined REPLACEB replaces part of a text string, based on the number of bytes you specify, with a different text string.

what is number of bytes here.  can you elaborate in an example within excel?
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FloraAsked:
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Juan OcasioApplication DeveloperCommented:
SearchB counts each character as 2 bytes (ie, Chinese, Japanese, etc., which is good for languages that use this, otherwise they both perform the same.
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Rgonzo1971Commented:
Hi,

SEARCHB counts 2 bytes per character only when a DBCS language is set as the default language

The term DBCS languages refers to the following four languages taken as a group:
Chinese (Simplified)
Chinese (Traditional)
Japanese
Korean
DBCS stands for Double-byte Character Set
.
refer to
https://support.office.com/en-us/article/search-searchb-functions-9ab04538-0e55-4719-a72e-b6f54513b495

Regards
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FloraAuthor Commented:
Many thanks.
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