File register definitions may saved to, and restored from, disk files as part of Modsak's configuration (see Saving and restoring the configuration ).

File register definitions can also be saved separately by selecting the File → Export File Registers menu item. This displays a dialog that enables you to enter or select the name of the file to save the registers to.

To restore the registers from a file, use the File → Import File Registers menu item. This displays a dialog that enables you to enter or select the name of the file to restore the registers from. If Modsak is "running" (i.e. the Run button is depressed), you will have to click the Run button again before you can load the registers.

Loading from a file will add new file register definitions and replace existing file register definitions, but will not delete any file register definitions. If you want to totally replace the the set of file register definitions you should delete all the file register definitions (using the Delete Files button in the File Register Table page) before importing the new definitions.

Export File Registers saves the register definitions in CSV format, and Import File Registers expects the file it reads to be in CSV format. The CSV format is described in the CSV file format appendix.