Hello
i have problem, i have got simulation of reactive distilation with pervaporation in apsen with recycle and pervaporation is linked through USER MODEL with excel sheet. if i want to run the simulation every one iteration excel open the warning wich said: "File ....XLS is already open. Its another opennig will discard all done changes. Do you want the file .....XLS open again? (YES) and (NO)" if i press YES it run again but only for this iteration but the complete scheme converge only after 500 iterations so its a waste of time to still press YES.

Please could anybody help me and said how could i turn off this feature in excel or what should i do to DO NOT press still the YES button?