How can I print the ethernet packet I see in Wireshark to a text file?

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I have a device that only gives a status response on port 7000 when a request message comes in from port 7000. I am using a software to control this device and when I open the interface of this software, these request messages are automatically sent to the device and a response is received from the device. That is, when the control software is running (sending a request from port 7000 and replying from port 7000), this port is busy. I can view these packets in Wireshark. But since the software is running at that time (7000 port is busy), I cannot listen to this port with any other software. How does Wireshark display these packets? How can I print these packets that I view in Wireshark to a text file?