Translations:Exporting results/50/en
From LimeSurvey Manual
Adding new responses to the existing responses of a survey
This is not supported for version 1 of the format as it easily can lead to various problems including data being imported into the wrong columns. The version 1 of the .vv file was always meant for vertical verification of data in an external tool like Excel, not as a mean to pull together data from different source (like the same survey running on another server).