Dear Expert, I extracted data from a root file and covert it to txt file in root v5 by use of the following commands: #include <string> #include <fstream> using namespace std; ofstream myfile; myfile.open ("cst52.txt"); TFile * inputfile = TFile::Open( "cst5.root"); TTree * yourtree = (TTree*) inp…

In your macro “Energy” is declared a float: float Energy; // EDIT:you may actually want to change double to float because that is usually the branch type