Generic names like "Big_Preview" followed by an .rar or .zip extension are common indicators of malware or phishing attempts. If you encountered this file as a download link from an unsolicited email or an untrusted website, do not open it.

It is frequently used for archives containing large previews of photos, vector graphics, or design templates from sites like Freepik or Adobe Stock.

If this was part of a specific research dataset or a supplementary material for a paper, the name is likely a placeholder used by the uploader rather than a formal title.