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How to download the data of communication letter 1 minute and 5 minutes?
The data of communication letter 1 minute and 5-minute are downloaded as follows:

1. In the data download interface, select the variety and cycle to download. For the data of 1 min, select "period" as 1 min; For 5-minute data, select the Period as 5 minutes.

2. In the time range selection box, set the time range of the data to be downloaded. You can choose a specific start date and end date, or you can choose the data of recent days.

3. Click the "Download" button to start downloading data. The address book will automatically download data and save it to the specified directory. Tong Daxin is a widely used financial data analysis software in China, developed by Shanghai Tong Daxin Software Co., Ltd., which provides real-time market data and technical analysis tools for financial markets such as stocks, futures and foreign exchange.