How to adapt the database for unloading in CMS (Shop script)?

Question

CMS

Hello. Prompt how to be with such task.
Given:
CMS Shop Script 7
Database in MySQL for unloading goods
Task:
Prepare import file from database for Shop Script.
Details:
The parsed database is almost ideal for importing into Shop Script, the problem is that the values ​​of the characteristics are in different formats. I have no idea how to solve the problem.
What format does CMS require from importing a file for features
Feature 1 | Feature 2 | Feature 3 | Feature 4 |
Value 1 | Value 2 | Value 3 | Value 4 |
What data format do I have in the SQL database
Characteristic_Value
["characteristic 1":"value 1";"characteristic 2":"value 2";"characteristic 3":"value 3";]
Curly braces, separator - I can edit as I like, the main problem is that the record goes to one cell .
You can still like this
Characteristic | Value
characteristic 1 | value 1
Guys, help at least for the money :)
I need help.