Export txt file from xls with specific pattern (VBA Excel expertise)

I have an excel file that should export data to a txt file with specific pattern. The export file is separated by commas, but every line of xls is turned into 6 lines txt. The beginning of line one starts with letter "T", second line starts with "C" and the next four with "G". All other values are in excel. For instructions I have: 1) sample of xls worksheet, 2) a txt file with exact output necessary 3) another txt with comments between ?? explaining each field ## Deliverables see attached with instructions