MATLAB Programming

Working with Spreadsheets
Adding a New Worksheet. If the worksheet being written to does not
already exist in the file, MATLAB displays the following warning:
Warning: Added specified worksheet.
You can disable these warnings with the command
warning off MATLAB:xlswrite:AddSheet
Importing from the File
Use xlsread to import a matrix from an Excel spreadsheet file into the
MATLAB workspace. You can import data from any worksheet in the file,
and from any location within that worksheet. You can also optionally have
xlsread open an Excel window showing the file and then interactively select
the worksheet and range of data to be read by the function.
Inputs to xlsread are
• Name of the spreadsheet file
• Matrix to be imported
• Name of the worksheet from which to read the data
• Range of cells on the worksheet from which to read the data
• Keyword that opens an Excel window, enabling you to interactively select
the worksheet and range of data to read
• Keyword that imports using basic import mode
Three separate outputs from xlsread are
• Numeric data
• String data
• Any unprocessed cell content
Example — Reading from an XLS File. Continuing with the previous
example, to import only the numeric data, use xlsread with a single return
argument. xlsread ignores any leading row or column of text in the numeric
result:
6-99