User's Manual Part 2

You can import several files at one time. For consecutive files, click the first file
in the list, press and hold down the SHIFT key, and then click the last file in the
list. For files that are not consecutive,
press and hold down the CTRL key, and
then click each file that you want to import.
4) Click the Open command button to import or Cancel to quit the command.
The .MDM is automatically converted to a (.XMG) file and saved in the current open
working directory.
5.5.1.3.2. TEXT (.txt)
To import Text (.TXT) files:
1) On the File menu, point to Import and then select TEXT (.txt).
2) Navigate to the file folder where the file(s) to import are located.
3) Select the file to import.
4) Click the Open command button to import and the Data Import Formatter dialog
box appears.