Mat2Str
Business Rules! 4.20 introduces the Mat2Str internal function which converts an array to a string
Mat2Str(Mat Source$, Destination$, [, Delimiter$])
By default a CR (Linux) or CRLF (Windows) will be inserted as a delimiter. The delimiter will be put after every entry from the array including the last entry. The delimiter can be "" which would simply concatenate the array.
Mat2Str performs the opposite action of Str2Mat