Unkown Delimiter in .dat file not processed in Flat file source in SSIS

I want to process one .Dat file in SSIS,I opened in Notepad++ and the data look like,

5SOX0SOX2309663SOX00001SOX8910STX1STXSOX12SOXSOX12345SOX

This only one line from the file ,the size of the file is almost 2gb. I think its in the Hex coded file but I don't know how to use this file in SSIS.