Answer:
The description you provided matches a "Cookies" file. These are small pieces of data stored on your device's hard drive or memory by websites you visit, including social media sites. Cookies store information about your browsing activity, preferences, and usage patterns on those sites. This information is used by the website to personalize your experience, track your sessions, and provide targeted advertising. However, it's essential to note that the specific file name may vary depending on the operating system and browser you're using.