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Depending on the model specifications, there may be some occasions where several files need to be open simultaneously to execute the model. There is a feature which allows the user to access up to 255 open files at any time. The [General] section of the promod.ini file contains the following statement: OpenFiles=n where n is the number of files between 20 and 255. The default is 40. To change the number of available open files, simply edit thepromod.ini file such that OpenFiles equals the desired number and then restart ProModel. There is also the option to close files using the CLOSE statement. See Close.