- Usewritematrixorwritecell:If using a recent version of MATLAB (R2019a or later), try usingwritematrixorwritecellinstead ofxlswrite. These functions are generally faster and more efficient for writing data to files.
% Assuming your data is stored in a variable named 'data'
writecell(data, 'output.xlsx');
- Split the Data:If possible, split your data into smaller chunks and write them individually.
- Save as CSV:If Excel format is not a strict requirement, saving as a CSV file can be faster. You can usewritecellorwritematrixfor this purpose:
writecell(data, 'output.csv');
- Increase MATLAB's Java Heap Memory:If you're running into memory issues, you might consider increasing the Java heap memory in MATLAB. You can do this by going toPreferences > MATLAB > General > Java Heap Memory.
- Use Parallel Computing:If you have the Parallel Computing Toolbox, you could try to parallelize the export process. This might not be always faster.
Here is the documentation for writeCell and writeMatrix :
Hope this helps!
