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The script you used:
awk '{sub("$","\r\n"); printf("%s",$0);}' inputfile > outputfile
would produce double spaced lines (with a carriage return at the end of the 1st line of every pair. To get...

awk -F "Ç" 'NR == 1 {p = $0; next}
NF > 1 {gsub("^M", X, p); print p; p = $0; next}
{p = (p " " $0)}
END {gsub("^M", X, p); print p}' filename