The file will have 1000s of records each record has its own header and footer. The header and footer can be different for each record. Only thing is that the header and footer are of fixed lenght 50 and 30.

HDR.S287878877.DDDDD.DDDDDDXXXXXXXXXXXXXXXXXXXXXXX1STR HYTRES NAME PLA
+CE DEST GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
GGGGGGGGGGGGGGGGGGGG11111111111111111111122222222222222222222222222223
+33333333333333333333333333444444444444444444444444444444444455
5555555555555555555555555555566666666666666777777777777FTRDDDDDDDDDDFF
+FFFFFFFFFFFFFFF
HDR.S287878877.DDDDD.DDDDDDXXXXXXXXXXXXXXXXXXXXXXX1STR HYTRES NAME PLA
+CE DEST GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
GGGGGGGGGGGGGGGGGGGG11111111111111111111122222222222222222222222222223
+33333333333333333333333333444444444444444444444444444444444455
5555555555555555555555555555566666666666666777777777777FTRDDDDDDDDDDFF
+FFFFFFFFFFFFFFF
[download]

Sry if there was a better way to send a sample file. I copied the same record twice for simplicity sake but they will be different but leaght will be 50 and 30 and each record will have it until the end of the file.

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