edit: wow, thanks for so many suggestions, but I wanted to have a regexp solution specifically for future, more complex use.
I need support with splitting text strin
Text to columns will work. Another option, if you want to keep the original value, is to use formulas: in B1
=left(a1,find(":",a1)-1)
in C1
=mid(a1,find(":",a1)+1,len(a1))