Basic data update by using the browser function

[SupportingTeam]

Hello ... I am just, as many others, a new user of the incredible GUI library.
First shot based on the given excamples ended in a multiple value drag and drop visualisation of a fixed defined dataset.
Next target is to update the given dataset(s) using the file browser functionality. However ... here is the point. Any attempt so far lead to a dead end.
Any hint where in the code the data update should be done to make the update happen?
The used files are attached as *.zip. (included: (1) dearpygui script, (2) fixed data set as *.csv)
Thanks in advance!!!