How to overwrite my data everytime I run my code?

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KD 2024-8-13

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https://ww2.mathworks.cn/matlabcentral/answers/2144969-how-to-overwrite-my-data-everytime-i-run-my-code

评论： Walter Roberson 2025-3-30

I'm currently writing a program and everytime I run it, it just adds the data to the excel vs deleting the contents of the excel and replacing it with new data. I'm using the writetable function which I thought would automatically clear the excel before filling it with new data. Any ideas?

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采纳的回答

Hassaan 2024-8-13

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https://ww2.mathworks.cn/matlabcentral/answers/2144969-how-to-overwrite-my-data-everytime-i-run-my-code#answer_1498449

在 MATLAB Online 中打开

% Your data table
data = table(...); % Replace with your actual data
% Delete the existing file (if it exists)
if exist('your_file.xlsx', 'file')
    delete('your_file.xlsx');
end
% Write the data to an Excel file and overwrite it
writetable(data, 'your_file.xlsx', 'WriteMode', 'overwrite');