---
id: "P:cAlgo.API.BacktestingSettings.DataFile"
kind: "property"
type: "T:cAlgo.API.BacktestingSettings"
url: "https://help.ctrader.com/ctrader-algo/references/Plugin/Backtesting/BacktestingSettings/DataFile/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# BacktestingSettings.DataFile

Member of [BacktestingSettings](https://help.ctrader.com/ctrader-algo/references/Plugin/Backtesting/BacktestingSettings/index.md).

## DataFile

Gets or sets the path to the data file used for backtesting.

Environments: Desktop supported · CLI not supported · Cloud not supported.

- CLI: Available to plugins only, and plugins cannot run in the CLI.
- Cloud: Available to plugins only, and plugins cannot run in the cloud.

C#:

```csharp
public string DataFile {get; set;}
```

Python:

```python
backtestingSettings.DataFile: str
```

### Returns

`string` — 

### Examples

C#:

```csharp
var settings = new BacktestingSettings
{
    DataMode = BacktestingDataMode.M1Csv,
    DataFile = @"C:\Data\EURUSD_M1.csv"
};
Print("Backtesting data file: {0}", settings.DataFile);
```

Python:

```python
settings = BacktestingSettings()
settings.DataMode = BacktestingDataMode.M1Csv
settings.DataFile = r"C:\Data\EURUSD_M1.csv"
api.Print(f"Backtesting data file: {settings.DataFile}")
```