Matlab does not overwrite importing Excel

matlab The parameters of independent variable and dependent variable are defined in , Every time the independent variable and dependent variable are changed , If you do not change the import excel The location of , The results of the next run will overwrite the results of the previous run , To solve the problem of not overwriting the import excel The problem of , This method is only used as a simple reference ：

clc;clear;
x=4;% The independent variables 
y1=2*x;% The dependent variable 1
y2=3*x;% The dependent variable 2


filename = 'D:\lx.xlsx';% File name （ The file will be saved to the current path , The path can be changed ）
xlswrite(filename,{'x','y1','y2'},1,'A1');% In the first line, fill in the names of the respective variables and dependent variables 
A = {x,y1,y2};% Import required excel Independent and dependent variables in 
xlswrite(filename,A,1,'A2');%'A2' Indicates that the imported data is written from the second row 

% Bear in mind ！！！ Second operation matlab when , That is, the position of data writing needs to be changed when the value of the independent variable changes , For example, the last run write 'A2', Next write 'A3'.

% for example ：
% xlswrite(filename,A,1,'A3');%'A3' Indicates that the imported data is written from the third row