Convert Csv To: Metastock Format

# Create output folder if not exists os.makedirs(output_folder, exist_ok=True)

# Create MASTER file (simplified) master_path = os.path.join(output_folder, 'MASTER') with open(master_path, 'wb') as f: # Write minimal master record for one security # Structure is complex; for real use, copy from existing MASTER # This is a simplified placeholder f.write(security_name.encode('ascii') + b'\x00' * (32 - len(security_name))) f.write(struct.pack('<H', 1)) # 1 = stock type f.write(struct.pack('<H', 0)) # data format convert csv to metastock format

Then update the MASTER file with all security names (requires binary editing or use a tool like ). Best Free Tools Summary | Tool | Platform | Ease of Use | |------|----------|-------------| | MetaStock Converter (MSconv) | Windows | Easy | | Python script (above) | Any | Moderate | | Excel + Binary editor | Windows | Hard | | Notepad++ + Hex plugin | Windows | Very Hard | Final Checklist ✅ CSV has headers: Date, Open, High, Low, Close, Volume ✅ Dates converted to YYYYMMDD integers ✅ Data sorted newest to oldest (descending) ✅ Volume is integer, prices are floats ✅ Output folder path contains no spaces or special characters ✅ MetaStock is closed during file write (to avoid locking) # Create output folder if not exists os

File size in bytes ÷ 28 = Number of records Example: 2800 bytes ÷ 28 = 100 days of data. Using Python, loop through a folder: 'MASTER') with open(master_path