In ChatGPT, click on “New Chat”, select GPT-4, and ensure that plugins are enabled. Next, navigate to the plugin store via the bottom of the plugins dropdown. Use the search bar to find the “Chat With Your Data” plugin by entering the plugin's name or typing a related keyword, such as 'data' or 'spreadsheets'.
Note: You must have ChatGPT premium and plugin access to utilize the “Chat With Your Data” plugin.