There is probably a line-feed character just after "R11". This is the unix text file record terminator. Suggest getting the file format corrected such that it is suitable for a text file.

i Finally found the root cause for this issue. the culprit is the mainframe part of the code. For certain rows the mainframe program creates an 'invalid character' at the 105th position. And this invalid character gets treated as newline character in transmission, taking the rest of the data in the line to a new line. I had to dig deep into the mainframe part to get find the root cause. Thanks for all your suggestions!!