The Excel CLEAN Function
The Excel CLEAN function removes all non-printable characters from a supplied text string.
The function is designed to remove the non-printable characters, represented by numbers 0 to 31
of the 7-bit ASCII code, which are often found at the start of data that has been imported into
Excel from other applications.
The syntax of the Clean function is:
CLEAN( text )
where the text argument is the text string that you want to remove
the non-printable characters from.
Clean vs. Trim Function
Note that the Clean function is similar to the
Excel Trim Function
The two functions differ in that the Clean Function removes the non-printable characters,
represented by the ASCII numerics codes 0 to 31, while the Trim function removes additional
spaces (represented by the ASCII numeric code 32).
Clean Function Examples
The following spreadsheet shows the Excel Clean function applied to four different text strings.
All four of the above examples give the same result, which is the string,
For further information and examples of the Excel Clean function, see the
Microsoft Office website.