Como atualizar banco mysql através de formulario php

Olá,

Gente preciso construir um script que possa atualizar um banco mysql através da importação de um arquivo txt via formulário no browser. O arquivo em questão é um arquivo sintegra, onde as informações não possuem delimitadores, tipo , ou ;. Alguem poderia me dar uma sugestão, orientação, estou aceitando tudo. Abaixo segue o arquivo em txt que preciso importar via formulário para o mysql.

>
500719980500120884965468 20120202BA011 0082231403T000000190000000000000000000000000000000000000000000000000019000000000N

501130110600014184734707 20120207BA0155 0080551102T000000000880000000000088000000000000616000000000000000000000000000700N

501130110600014184734707 20120207BA0155 0080551102T000000003040000000000178810000000003038000000000000000000000125191700N

500719980500120884965468 20120211BA011 0083331403T000000186500000000000000000000000000000000000000000000000018650000000N

501345718900019823096622 20120215BA011 0402101102T000000004847300000000484730000000003392000000000000000000000000000700N

501345718900019823096622 20120215BA011 0402101102T000000001189500000000118950000000002022000000000000000000000000001700N

500719980500120884965468 20120218BA011 0084341403T000000193600000000000000000000000000000000000000000000000019360000000N

500874290900012773676159 20120218BA011 0054431102T000000003921000000000230640000000003920000000000000000000000161461700N

503431471600018529746435 20120218BA011 2518511403T000000001797400000000000000000000000000000000000000000000000179740000N

503431471600018529746435 20120218BA011 2518511102T000000002948000000000167810000000002849000000000000000000000126991700N

509672765600018036861664 20120218BA011 1151371102T000000000509600000000029970000000000508000000000000000000000020991700N

509672765600018036861664 20120218BA011 1151371102T000000001810000000000000000000000000000000000000000000000000181000000N

508844703200182911411796 20120223BA011 0658282403T000000008250000000000000000000000000000000000000000000000000825000000N

500719980500120884965468 20120224BA011 0084991403T000000186600000000000000000000000000000000000000000000000018660000000N

500472114200036076368419 20120225BA011 0155081102T000000003483800000000204900000000003479000000000000000000000143481700N

500472114200036076368419 20120225BA011 0156781102T000000002951300000000173570000000002948000000000000000000000121561700N

500627027100014364032034 20120229BA011 0018761102T000000010600000000000000000000000000000000000000000000000001060000000N

510719980500120884965468 20120202BA1 00822314030000001900000000000000000000000019000000000000000000 N

511130110600014184734707 20120207BA55 00805511020000000039200000000000000000000000392000000000000000 N

510719980500120884965468 20120211BA1 00833314030000001865000000000000000000000018650000000000000000 N

511345718900019823096622 20120215BA1 04021011020000000060368000000000000000000000603680000000000000 N

519672765600018036861664 20120218BA1 11513711020000000005096000000000000000000000050960000000000000 N

519672765600018036861664 20120218BA1 11513711020000000018100000000000000000000000181000000000000000 N

513431471600018529746435 20120218BA1 25185114030000000017974000000000000000000000179740000000000000 N

513431471600018529746435 20120218BA1 25185111020000000029480000000000000000000000294800000000000000 N

510874290900012773676159 20120218BA1 00544311020000000039210000000000000000000000392100000000000000 N

510719980500120884965468 20120218BA1 00843414030000001936000000000000000000000019360000000000000000 N

518844703200182911411796 20120223BA1 06582824030000000082500000000000000000000000825000000000000000 N

510719980500120884965468 20120224BA1 00849914030000001866000000000000000000000018660000000000000000 N

510472114200036076368419 20120225BA1 01550811020000000034838000000000000000000000348380000000000000 N

510472114200036076368419 20120225BA1 01567811020000000029513000000000000000000000295130000000000000 N

510627027100014364032034 20120229BA1 00187611020000000106000000000000000000000001060000000000000000 N

530719980500120884965468 20120202BA011 0082231403T000000190000000000000000000000000000000N

530719980500120884965468 20120211BA011 0083331403T000000186500000000000000000000000000000N

539672765600018036861664 20120218BA011 1151371102T000000001810000000000000000000000000000N

539672765600018036861664 20120218BA011 1151371102T000000001810000000000000000000000000000N

530719980500120884965468 20120218BA011 0084341403T000000193600000000000000000000000000000N

538844703200182911411796 20120223BA011 0658282403T000000008250000000000000000000000000000N

530719980500120884965468 20120224BA011 0084991403T000000186600000000000000000000000000000N

5407199805001208011 00822314030600011 000001000000000006400000000000000000000000000000000000000000000000000000000

5407199805001208011 00822314030600022 000001800000000011160000000000000000000000000000000000000000000000000000000

5407199805001208011 008223140306000338 000000600000000000840000000000000000000000000000000000000000000000000000000

5407199805001208011 008223140306000439 000000400000000000600000000000000000000000000000000000000000000000000000000

54113011060001410155 008055110202000195 000000020000000000144000000000000000000000084700000000000000000000000001700

54113011060001410155 008055110200000280 000000040000000000088000000000000000000000088000000000000000000000000000700

54113011060001410155 008055110202000376 000000100000000000160000000000000000000000094120000000000000000000000001700

5407199805001208011 00833314030600011 000001750000000011025000000000000000000000000000000000000000000000000000000

5407199805001208011 00833314030600022 000001250000000007625000000000000000000000000000000000000000000000000000000

5413457189000198011 040210110200000112 000000050000000000345000000000037080000000307920000000000000000000000000700

5413457189000198011 040210110200000235 000000030000000000118950000000000000000000118950000000000000000000000001700

5413457189000198011 04021011020000037 000000050000000000198100000000021290000000176810000000000000000000000000700

5496727656000180011 1151371102020001142 000000010000000000025570000000000000000000015040000000000000000000000001700

5496727656000180011 1151371102060002116 000000100000000000181000000000000000000000000000000000000000000000000000000

5496727656000180011 1151371102020003143 000000060000000000025390000000000000000000014930000000000000000000000001700

5434314716000185011 2518511403000001130 000000030000000000053940000000000000000000000000000000000000000000000000000

5434314716000185011 2518511403000002131 000000020000000000046800000000000000000000000000000000000000000000000000000

5434314716000185011 2518511102020003132 000000010000000000024400000000000000000000014350000000000000000000000001700

5434314716000185011 2518511102020004133 000000020000000000107000000000000000000000062940000000000000000000000001700

Grato,

Darlan Sandro