📊 Crystal Data Extractor — MT5

Name: MQL5 Algo Forge
Brand: MQL5

By Crystal AI Systems | MQL5 Profile

Export Tick or OHLC market data to a clean comma-separated CSV file — directly from MetaTrader 5.

✅ Features

Two modes: Tick Data (Bid/Ask/Last) or OHLC Bars (Open/High/Low/Close/Volume/Spread)
Works on live charts AND Strategy Tester
Proper CSV format — opens correctly in Excel (no column merging)
Historical OHLC dump on startup (configurable lookback)
Auto-named files with symbol + timeframe
Optional file prefix for organizing multiple runs

📁 File Locations

Live Chart:

File > Open Data Folder > MQL5 > Files > XAUUSD_M15_OHLC.csv

Strategy Tester:

File > Open Data Folder > Tester > [AgentID] > Agent-127.0.0.1-3000 > MQL5 > Files

⚠️ Tester files are NOT in the main MQL5\Files folder!

⚙️ Input Parameters

Parameter	Description
Data Mode	TICK = raw tick data / OHLC = closed candle bars
Timeframe	Used in OHLC mode only
Lookback Bars	Historical bars dumped on startup (0 = disabled)
File Prefix	Optional label added to filename

📄 CSV Columns

Tick mode: Time, Bid, Ask, Last, TickCount

OHLC mode: Time, Open, High, Low, Close, Volume, Spread

🚀 How to Use

Copy Crystal_DataExtractor.mq5 to your MT5 MQL5\Experts\ folder
Compile in MetaEditor (F7)
Attach to any chart (e.g. XAUUSD M1)
Set your preferred Data Mode and Timeframe in Inputs
CSV file is created automatically in MQL5\Files\

Strategy Tester Tip:

Set the Tester chart TF lower than your OHLC input TF. Example: Want H1 OHLC? Run tester on M1 or M5. Use "Every tick" model for best accuracy.

📂 File Naming

Mode	Filename
OHLC	`XAUUSD_M15_OHLC.csv`
Tick	`XAUUSD_Ticks.csv`
With prefix	`Test1_XAUUSD_M15_OHLC.csv`

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