Hi,
I am afraid that Origin does not support re-import Matlab Files yet.
However, if all your files are still in the same folder as what they was imported in Origin, you can try the script below. it loops all worksheets in a project, find out the imported matlab file and re-import it from the saved path.
//loop all worksheet in the project
doc -e W
{
string strpath$=%(%H, @W,SYSTEM.IMPORT.FILENAME$); //read the path of imported file in worksheet
wclear msg:=0; //clear worksheet
impMatlab fname:=strpath$; //re-import the file
}
Echo
OriginLab Technical Support