It may be a Base64 string, a product SKU, or a one-time password/access code.
If you found this link on an untrusted site, be cautious. Randomly generated strings followed by ".zip" are sometimes used in phishing or malware campaigns to trick users into downloading harmful content. TzdvgEWV zip
Could you provide about where you saw this string or what you are trying to do with it? It may be a Base64 string, a product