All functions to modify database

Export selected files or the whole database to specific directory

Import files:

Select a file by browsing from directories.
Import it to specific location by choosing from the data list

Add new label tag:

Additional label can be added here by providing the new node name and label value
The place where to add this new label can be specified also.

Remove NaN :

Delete all unwanted NaN value from documents.

Rename node:

Any node name can be selected from the whole databse and can be renamed with the provided value