Need the steps

Hi,
Can you please show with the proper steps to load the flat file with such contents?
TYP1~COL1~COL2~COL3
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP1~COL1~COL2~COL3
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP1~COL1~COL2~COL3
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP1~COL1~COL2~COL3
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP1~COL1~COL2~COL3
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8
TYP2~COL1~COL2~COL3~COL4~COL5#COL6#COL7#COL8

Please note that the group in which one TYP1 line with several TYP2 lines are repeating again and again throughout the whole input file.

Many Thanks & Best Regards, Hua Min