When you set up a conversion project (see §3.3 Creating a Mif2Go conversion project), you use the Mif2Go Choose Project dialog to specify the output type. Mif2Go produces a new project configuration file for you that contains the correct setting for the output type you selected. Do not change this setting.
Table 5
§13.2.4 Specifying a different output file extension
§19.6.2 Specifying a file extension for interfile links
Table 5
You can also use the Export dialog to change the file extension, just before running a conversion (see §3.7 Choosing final conversion options). When you do, Mif2Go writes the new extension to the configuration file.