The Cabrillo format is a standardized file for submitting logs used by ARRL, CQ and others. The file is a text file and can be edited easily. Most logging programs will generate a Cabrillo file for the NEQP so you should not need to read further, but if you want to create your own the details below should help.
The best source for information about Cabrillo is here –> https://wwrof.org/cabrillo/
Template for NEQP:
--------INFO SENT------- -------INFO RCVD--------
QSO: FREQ MO DATE TIME CALL RST EXCH CALL RST EXCH
QSO: ***** ** YYYY-MM-DD NNNN ************* NNN ****** ************* NNN ******
QSO: 3799 PH 1999-03-06 0711 WA1AAA/M 599 ESSVT W1AW 599 HARCT
0000000001111111111222222222233333333334444444444555555555566666666667777777777
1234567890123456789012345678901234567890123456789012345678901234567890123456789
Sample NEQP Cabrillo file:
START-OF-LOG: 2.0
ARRL-SECTION: IL
CONTEST: NEQP
CALLSIGN: W9IOP
CATEGORY: SINGLE-OP ALL HIGH MIXED
CATEGORY-ASSISTED: NON-ASSISTED
CLAIMED-SCORE: 123456
NAME: Wally B. Smith
ADDRESS: 123 Anywhere Street
ADDRESS: Suburb, IL 23456
ADDRESS: USA
CLUB:
SOAPBOX: Only missed two counties, see you next year.
QSO: 14280 PH 2002-05-05 1202 W9IOP 59 IL W1AW 59 HARCT
QSO: 14282 PH 2002-05-05 1202 W9IOP 59 IL K1ABC/M 59 PISME
QSO: 14275 PH 2002-05-05 1202 W9IOP 59 IL W1BD 59 BENVT
QSO: 14290 PH 2002-05-05 1202 W9IOP 59 IL WC1M 59 WNDNH
QSO: 21380 PH 2002-05-05 1203 W9IOP 59 IL K1ABC/M 59 SOMME
QSO: 28385 PH 2002-05-05 1203 W9IOP 59 IL K2KQ/1 59 DUKMA
QSO: 28390 PH 2002-05-05 1204 W9IOP 59 IL K2RD 59 NHNCT
QSO: 14282 PH 2002-05-05 1204 W9IOP 59 IL WB1BRE 59 ORAVT
QSO: 14282 PH 2002-05-05 1205 W9IOP 59 IL K1ABC/M 59 PENME
QSO: 14282 PH 2002-05-05 1205 W9IOP 59 IL W1KK 59 HMPMA
QSO: 21289 PH 2002-05-05 1206 W9IOP 59 IL W1OP 59 PRORI
END-OF-LOG: