If you have added a comment to the file and want to read it and separate it into different substrings later on you will need to include a separator in the comment you write. Otherwise there is no way the other functions will know how to "unbundle" it (since it's not bundled but concatinated...).
The separator can be e.g. ".", ";", CRLF, Tab or whatever suits you best. Then you'll need to have a function somewhere that splits the string into it's componants based on the separators.