Microsoft Visual FoxPro 8.0 is a discontinued, proprietary software product. There is authorized by Microsoft for public download. Any website claiming to offer a free, full, cracked, or pirated version is likely distributing unauthorized, illegal copies that may contain malware, spyware, or viruses. Microsoft ended support for Visual FoxPro many years ago (mainstream support ended in 2007, extended support in 2015).
If you need VFP 8.0 for legacy development: Free download microsoft visual foxpro 8.0 full version
Historically, VFP was available to subscribers. Check your corporate or legacy subscriptions. Microsoft Visual FoxPro 8