Converts the Vensim dataset vddffile to a .dat format file datfile. If datfile is left off or empty the extension .dat is given to vdffile. savelist is a list of variables that should be extracted from the dataset (See Preparing, Using and Exporting Data for more information). If savelist is left off or empty then the values for all variables are converted. Adding the option + causes the data to be appended to the .dat file instead of overwriting this file. frequency, start, and end, if included determine the time range that will be exported.
codepage, if specified, determines the character encoding to use for the output. The default is UTF8 (65001). Use 0 to use the native ANSII encoding for the computer you are working with (usually 1252 ANSII Latin 1 for English and Western European languages).