# Import & Export
### CSV File
Time series manager allows you to import (export) structure of groups and time series from (to) CSV file. Format of the CSV file is as follows:
* Each field is enclosed in double quotes. If the field contains double quotes, then extra double quotes are inserted in front of them. For example, field **"Mud" temperature, °C** must be as follows **"""Mud"" temperature, °C"**
* Fields are separated by commas, e.g.: **"Group1","TS\_WaterLevel","Influx","Tag"**
* Each new set of fields starts with a new line.
* The first line specifies the name of the fields (parameters) and must contain all the parameters used.
Description of fields used during export and import of the time series:
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* **Series Group:** contains path to the group which contains the time series. Names of the groups are separated by dots.
* **Series:** contains the time series name.
* **Store:** contains the store name associated with the time series.
* **Data Source Object Type:** contains the data source type (**Tag** or **Expression**).
* **Data Source Group:** contains path to the group which contains the data source. Names of the groups are separated by dots.
* **Data Source:** contains the data source name.
* **Address:** contains string representation of the address (ID) (in the format specified by the store).
* **Converter:** contains string representation of the value converter (in the format specified for each type of the converter).
* **Deadband:** contains value for the deadband.
* **Deadband Mode:** contains deadband mode.
* **Sampling Mode:** specifies the mode for presentation of continuous quantity (None, Discrete, Analog).
* **Sampling Delta Factor:** specifies the factor (the real number) used for the values representation in the Analog mode.
* **Repeat Last Sample:** specifies that the current sample must be cycled if data source doesn’t change.
* **Repeat Last Sample Factor:** contains the factor (the real number) used for calculation of time interval in the cycling mode.
* **Comment:** contains any custom text.
### Import from Tags/Expressions
Time series manager allows you to import the structure of groups and time series from the tags/expressions available in the server. In this case the structure of groups and time series is created being equivalent to the structure of groups and tags/expressions where the data source for each time series will be a tag/expression which is the basis for this time series.