Do you have any example of a .z and a .mat file? if .z file are txt like file it should not be very difficult to write a script to do the conversion, if it's a binary file it will be more complicated but it should be possible if you know how .z file are built.

Hi,

This is my desired file

Something like this could work:

clear all

close all

file = 'data_exce.xlsx'

A = xlsread(file)

freq = A(:,1)

za = A(:,2)

zb = A(:,3)

fileID = fopen('myzfile.z','w');

fprintf(fileID,'"ZPlotW Data File: Version 3.1c"\n');

fprintf(fileID,'"Modified Data"\n');

fprintf(fileID,'"Sweep Frequency: Control Voltage""\n');

fprintf(fileID,'"Date: 11-24-1993 Time: 11:43:38"\n');

fprintf(fileID,'""\n');

fprintf(fileID,'""\n');

fprintf(fileID,'"c:\users\praveen.kuppusamy\desktop\jb_kp\cell8\25 degree 50 soc after ageing3.z60""\n');

fprintf(fileID,'"Frequency""\n');

fprintf(fileID,'0,2,0,1,0.1,1000\n');

fprintf(fileID,'22\n');

fprintf(fileID,'" Freq(Hz) Ampl Bias Time(Sec) Z''(a) Z"b) GD Err Range"\n');

dt = 0.5

t=0

for i = 1 :length(freq)

vect = [freq(i),0,0,t,za(i),zb(i),0,0,0]

t=t+dt

fprintf(fileID,'%1.6E,%1.6E,%1.6E,%1.6E,%1.6E,%1.6E,%1.6E,%1d,%1d\n',vect);

end

You did'n provide any time vector so I just make a time increase by 0.5s at each line.

check if your zview software accepts any other format other than .z?

Thanks Maxime, it worked. But one has to close the Matlab after creating these files and then process in zview.

Your right, I forget to close the file after writing in it.

add a fclose(fileID) at the end of the script and you should be able to open it in zview without closing Matlab each time. Sorry about that.