If you have some manually entered text in a column, and wish to clean it from unneeded chars, use this named function:
=TRIM_CHARS(B4:B13,D4) where the range [B4:B13] is your column with text values, [D4] is a cell with chars to replace. Chars to replace is a textual value of all chars without a delimiter. In my example, it is: \:{}[]|;<>?`~💩. To use a function: Copy my sample Spreadsheet Import the named function to your Spreadsheet