The first step in analyzing data is to import it into the MATLAB® workspace. See Methods for Importing Data for information about importing data from specific file formats.
When you analyze your data, you might create new variables or modified imported variables. You can export variables from the MATLAB workspace to various file formats, both character-based and binary. You can, for example, create HDF and Microsoft® Excel® files containing your data. For details, see the documentation on Supported File Formats for Import and Export.