How can i convert excel file to .mat format and call to matlab code

I have an excel file named DAH,numeric file .How can i call that excel file to matlab code.Should i convert it to .mat format to call?

please find the below code

filename = 'DAH.xlsx';

a = xlsread(filename);

save(matfileName,'a');

x=a(:,1);

plot(x)

i am getting this error

Error using xlsread (line 136)

XLSREAD unable to open file 'DAH.xlsx'.

File 'C:\Users\Neethu Elizabeth\Downloads\DAH.xlsx' not found.

[Adam Danz]

The xlsread function is a bit outdated. Consider replacing it with readtable, readmatrix, or readcell.

Answer 1

[Star Strider]

Provide the complete file path to ‘DAH.xlsx’ . That is easiest to do with the fullfile function.

[NN]

thank you , i will check this.Can you please explain how i can edit the code accordingly

[Star Strider]

As always, my pleasure!

Use fullfile with the complete path and ‘filename’ to create the argument to xlsread.

[NN]

thank you

[Star Strider]

As always, my pleasure!

[NN]

i got it cleared.i have an excel file which has two columns, first column represent time of the dayfrom0.00 and second column represent values with respect to the time of the day.but when i plot the column y axis shows differently, it shows second column values but not exact time as mentioned in the first column .Waht should i do to correct the timing

[Star Strider]

I cannot determine that because I do not know what the first column is. I also do not know what version/release of MATLAB you have.

One option, to be safe, is to to use the datenum function to convert the times to date numbers. Those values should plot correctly.

(A better approach would be to use datetime, and perhaps readtable or readmatrix instead of xlsread, however I do not know if you have those options.)