Data can be imported into custom libraries or exported from standard or custom libraries by opening the library editor, right-clicking on the desired library in the library editor tree and then selecting the appropriate Import or Export option. If you wish to create a custom library by importing data from another source, it must be in a text or MS-Excel file formatted correctly for SPACE GASS. If you are not sure what the correct format is, you should export one of the standard SPACE GASS libraries to a file and then open the file to see how it is formatted and then use that as a pattern for the file you wish to import.
For information on how to import SPACE GASS 10 or older libraries, refer to Importing old libraries.