MDC = MYDYNAMICCLASS(TEXTFILE) will create a set of class from TEXTFILE.
The file must be delimited by white spaces so for text use underscores. Do not use quotes anywhere.
The first line should begin with the Class name followed by a list of the Fields.
Each subsequent line should begin with the Member followed by the values for each of the Fields.
myDynamicClass will convert strings to numbers; and may read in arrays if they entered as strings and use commas instead of spaces.
MDC = MYDYNAMICCLASS(TEXTFILE,FORMAT) creates the file using a FORMAT string that conforms to the standard MATLAB textscan notation.
Using JSON is a more standardized way to convert text and text files to structures (or objects). XML is of course another standard and it is built into MATLAB, but it can be more effort than parsing JSON,
Here is a MATLAB JSON parser By Q Fang:
Also see these JSON references:
Here are some XML references: