Read thousands of xls file from a folder fast.
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Hello,
I have to read 20k or more xls files from a folder. From the xls I need just the values from between C26 and C29, this values are used after in some calculations.
So far i have this script:
clc, close, clear all
folder ='Folder adress';
filetype = '*.xls';
f=fullfile(folder,filetype);
d=dir(f);
for k=1:numel(d);
data{k}= xlsread(fullfile(folder,d(k).name),'C27:C29');
a=data{1,k};
if size(a) == [0,0]
b(k) = 0;
x(k) = 0;
else
b(k)=a(3,1)/a(1,1);
x(k)=(b(k)-1)/(b(k)+1);
end
end
It take the script about 30 minuters up to an hour to read all the excel files.Sometime the excel applicaion crash during the process.
There is another method to do this faster?
How can I stop excel from crashing (stop working)?
Thank you!
3 comentarios
Respuestas (1)
Siriniharika Katukam
el 12 de Nov. de 2019
Hi
As per the above linked documentation, it is suggested that you use readmatrix, readcell, readtable instead of xlsread.
1 comentario
Walter Roberson
el 12 de Nov. de 2019
But how are the timings of those comapred to xlsread talking to excel ?
(I do not have a Windows system with Excel installed, so I cannot test that.)
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