Trouble reading 6 excel files (with multiple sheets) and storing each excel as a its own matrix with my loop.

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JM
JM 2018-3-29
评论： JM 2018-3-29
Here is my current code
%My Code
foldername = 'My Folder Path';
files = dir(fullfile(foldername, '*.xlsx'))
for i = 1:length(files)
data = xlsread(fullfile(foldername,files(i).name));
end
This code works in some respect, however data only seems to hold 1 sheet from 1 excel file, despite the files variable having all 6 files in a 6x1 struct.
Ideally what I would like is 6 separate variables (or one that stores all six files, where I can reference specific files) in my workspace.
Then, I want to be able to reference data{sheets{columns/rows across every sheet}}. I believe I can do this part, its more so getting past the hurdle of importing each excel file.
Hope that makes sense and someone can offer some advice. Thank you.
  1 个评论
Elias Gule
Elias Gule 2018-3-29
you are overwriting the values stored in the variable "data" in that for loop. So the data stored in the variable will be from the last file that was processed.

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回答（2 个）

Elias Gule
Elias Gule 2018-3-29
Doing this might help: Replacing
data = xlsread(fullfile(foldername,files(i).name));
with
data{i} = xlsread(fullfile(foldername,files(i).name));
where data{i} contains data from the ith file.
  1 个评论
JM
JM 2018-3-29
Hi Elias, Thank you for the quick response.
I made the change you suggested and it seems to be taking the code in the right direction, however now I am getting 1x6 cell in data that contains the first sheet of each of the 6 excel files instead of containing all 30 sheets for each excel. Any idea why this might be?
Thank you.

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Elias Gule
Elias Gule 2018-3-29
ok, lets do this then:
foldername = 'My Folder Path';
files = dir(fullfile(foldername, '*.xlsx'))
for i = 1:length(files)
xldata = xlsread(fullfile(foldername,files(i).name));
data{i} = xldata;
end
  1 个评论
JM
JM 2018-3-29
Hey Elias,
With this code I am getting a 1x6 cell that has 6 sheets again and xldata has a 3006x20 double which is the contents of 1 sheet.
For some reason it still wants to only take the first sheet of each file in the data variable.

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