You can use the vi example here to get multiple names: http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=137&HOID=506500000005000000C7640100&HTHREAD=000091335&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0
Once you have the file names, you can use a for loop w/ a Read/Open file vi to open all the files.
