c++ - Why fstream doesn't work with excel.csv -

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i trying add data excel fstream csv doesnt work, don't know if doing wrong. here code

#include <iostream> #include <fstream>  using namespace std;  int main() {     ofstream file;     file.open("test.csv");     file << "one,two" << endl;     file << "three" << " , " << "four\n";     file.close();     return 0; }

the results one,two in cell a1 , three,four int cell b1 edit: expected a1 = 1 a2 = 2 b1 = 3 , b2 = four


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