MATLAB using Excel workbooks

[Adam King]

Re: MATLAB using Excel workbooks

I often use the function 'dir' to import multiple files.
Basically,
d = dir('*.txt'); %use can change file extension and * is a wild card that populates all files fitting the string.
then, use a loop to load variables
for i =1:length(d)
fname = d(i).name;
data = load(name);
% other code
end

I also like the comment on using a GUI. Might try that soon.

[Stuart Miller]

Re: MATLAB using Excel workbooks

Hello

A good trick to learn about the coding required (or to generate it) is to use the GUI approach to importing a worksheet, and then to select "generate script" on the options. This will then generate the script required to import the Excel worksheet following the settings you set. Either re-use this, or learn from it to understand what is required to for you....sometimes I find the generated scripts to not be the most concise due to them including a lot of default commands.

[Chris Miller]

Re: MATLAB using Excel workbooks

Your post is short on details, but the three commands you need are:
xlsfinfo -- the second output gives you a list of the spreadsheets in the file
xlsread -- reads the specified spreadsheet.
xlswrite -- writes the specified matrix/cell array to a worksheet in the file

Once you have the list of spreadsheets, you can loop through them while you read/analyze/write the data. I would recommend writing to a new file, so your input data remain unaltered (just in case of errors).

[Erin]

I have data saved on 40 separate worksheets within one Excel workbook. I am trying to write a loop in MATLAB to import, run through data from each sheet separately then export it separately as well. I am having difficulty with the import and export.