The java.util.Properties class javadoc states that:
A natural line is defined as a line of
characters that is terminated either by a set of line terminator
characters (<code>\n</code> or <code>\r</code> or <code>\r\n</code>)
or by the end of the stream. A natural line may be either a blank line,
a comment line, or hold all or some of a key-element pair. A logical
line holds all the data of a key-element pair, which may be spread
out across several adjacent natural lines by escaping
the line terminator sequence with a backslash character
<code>\</code>.
Therefore, try:
#### Lead Export File Content ###
EXPORT_HEADER=LEADID,CREATED_ON,DATE_TIME,ADAPTOR, FIRST_NAME,LAST_NAME,ADDRESS,CITY,STATE,ZIP_CODE,\
EDUCATION_LEVEL,DEGREE_OF_INTEREST,INFODEGREE,PROGR AM,INFOPROGRAM,INFOAREACODE1,INFOPHONE1,\
INFOAREACODE2,INFOPHONE2,BEST_TIME_TO_CALL,E-MAIL, ARE_YOU_AFFILIATED_WITH_THE_US_MILITARY,\
ARE_YOU_INTERESTED_IN_RECEIVING_FINANCIAL_AID,INFOCAMPUS,REM OTE_ADDR,INFOVENDORID,INFOUNIQUEID,CID,UID,AFID