Export Data to Excel Error:

I have three different output arrays as low voltage, med voltage and high voltage. Three arrays have different number of rows. I want to export three arrays as three different columns of same excel sheet.I tried to use the writetable, but after one writetable command, it is giving error

"Unable to write to file 'FlowDistinction_Yearly.xlsx'. You may not have write permissions or the file may be open by another

application."

Code:

filename = 'FlowDistinction_Yearly.xlsx'

writetable(array2table(High),filename,'sheet',1,'Range','A1:')

writetable(array2table(Med),filename,'sheet',1,'Range','A2:')

I checked few other options but most of them require same number of rows but in my case, number of rows will be different for each column.

[Harjas]

Thanks. It worked

Answer 1

[Clayton Coonrod]

A = [1,2,3,4]; 
B = [5,6,7]; 
C = [8,9,10,11,12];
ncol=max([length(A),length(B),length(C)]);
ndatasets=3;
T=cell(ndatasets,ncol);
T(1,1:length(A))=table2cell(array2table(A));
T(2,1:length(B))=table2cell(array2table(B));
T(3,1:length(C))=table2cell(array2table(C));
filename='FlowData2.xls';
T=cell2table(T');
writetable(T,filename)

[Image Analyst]

@Harjas's comment moved here:

Thanks! It worked!

Answer 2

[Cris LaPierre]

I am able to reproduce the error in R2018b. This appears to be an issue that has been fixed in newer versions of MATLAB. Any chance you can update your MATLAB version?

Note that, to write your data , I think you want the following Range syntax

writetable(array2table(High),filename,'sheet',1,'Range','A:A')
writetable(array2table(Med),filename,'sheet',1,'Range','B:B')

[Harjas]

Yes. But it still gives same error. Right now, it is not possible to update the MATLAB version. But, answer given by Clayton worked for me. Thanks for looking into my question.

[Cris LaPierre]

Ok, I asked internally and the recommendation was to add the 'UseExcel',false name-value pair, which fixed the error for me. In R2018 the default is true. In R2019 and on, the default is now false.

writetable(array2table(High),filename,'sheet',1,'Range','A:A','UseExcel',false)
writetable(array2table(Med),filename,'sheet',1,'Range','B:B','UseExcel',false)

[Harjas]

Okay, I tried to use but it is now giving me invalid parameter name: UseExcel. I have attached the error image for your reference.

[Image Analyst]

@Harjas then just use @Clayton Coonrod's solution which you said already worked.

Otherwise take out the 'UseExcel' parameter. If you still want an .xlsx format workbook created but for some reason do not want Excel to be used, then call tech support and ask them why UseExcel is not working. The UseExcel = false should work for these formats: .xls, .xlsx, .xlsm, .xltx, .xltm

Answer 3

[Image Analyst]

Maybe the workbook is still locked because the first call to writetable() has not finished 100%. If you put

pause(2); % Wait 2 seconds for writetable to finish.

in between the calls to writetable, does it work then?

[Cris LaPierre]

It didn't help me. I had to kill the process and delete the workbook, and even then, it wasn't behaving as I would expect.

[Harjas]

No,it still gives same error. But, answer given by Clayton worked for me. Thanks for looking into my question.

[Image Analyst]

No problem. Please click "Accept this answer" on his answer below to award him reputation points.