The n900export program uses standard rtcom-eventlogger api to access SMS messages. It then replaces semicolons with colons in SMS text so it does not interfere with CSV separator, and newline with newline and space, so new lines in SMS text allways starts with space. This is required by Merlin's jollaImport to identify that these lines belongs to the same SMS message. The Eventlogger's database is located at /home/user/.rtcom-eventlogger/el-v1.db, it's a SQLite database file, so you can just copy it to your PC and manipulate it as you like.