overloading operators when I have typename

Good Morning,
I am beginner in c++ and I need some help to implement a class to represent cell in excel.
The first problem I have is that I don't know how to define date
and the second is overloading some operators. Could you help me please ?


My code is :

Code:

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#include<iostream>
#include<string>
using namespace std;


template<typename T>
class Cell {
        public:
                Cell(T d) : data(d) {}
                T get_value() const;
                void set_value(T x);


        // overload operators
        // bool operator == (const Cell&, const Cell&);
        // bool operator > (const Cell&, const Cell&);
        // bool operator = (const Cell&); // I don;t know which should be the parameter. "data" ?


        private:
                T data;
};


template<typename T>
T Cell<T>::get_value() const {
    return data;
}


template<typename T>
void Cell<T>::set_value(T x) {
    data = x;
}


// template<typename T>
// bool Cell<T>::operator == (const Cell& c1, const Cell& c2){
//    bool ret = false;


//        if ( c1.data==c2.data)
//                ret = true;
       
//        return ret;
// }


// template<typename T>
// bool Cell<T>::operator > (const Cell& c1, const Cell& c2){
//    bool ret = false;


//        if ( c1.data>c2.data)
//                ret = true;
       
//        return ret;
// }


int main() {
    Cell<int> a1(12);
    cout << a1.get_value() << endl;


    Cell<float> b1(2.32);
    cout << b1.get_value() << endl;


    string s = "test";
    Cell<string> c1(s);
    cout << c1.get_value() << endl;
}

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I would appreciate any help.
Thank you