I need to find the FFT plot of my excel data.

Hi, am trying to get the FFT plot of my EMG data. Upon running the code am getting the numerical output of FFT but not getting the plot which I need and hereby attaching the code which I used. The file also I attach. Plz help me to get the plot.

clc
clear all

load Target1.mat

Error using load
Unable to find file or directory 'Target1.mat'.

x = Target1.X;
Y = Target1.Tr;
plot(x,Y)

z = fft(x)

Fs = 1000;            % Sampling frequency                    
T = 1/Fs;             % Sampling period       
L = 1000;             % Length of signal
t = (0:L-1)*T;        % Time vector
f = Fs*(0:(L/2))/L;
plot(z,f) 
title('FFT of an EMG signal')
xlabel('f (Hz)')
ylabel('|Z(f)|')

Answer 1

[KSSV]

Replace this line:

load Target1.mat

by

Target1 = readtable('Target1.xlsx') ;

[Emimal M]

Thank you so much for your answer... Got the expected output...

Answer 2

[Walter Roberson]

Change

plot(z,f) 

to

Z = z(1:length(f));
plot(f, real(Z), f, imag(Z))
legend({'real', 'imaginary'})

[Emimal M]

Thank you...I replaced the line and got my problem solved.....