While there isn't a single official document or dataset universally known as the "457K zip," several high-quality resources exist depending on whether you are looking for documentation or tax data archives. 457 Retirement Plan Resources
: Many open-source benchmarks or data files (like the BEIR Benchmark on GitHub) allow you to download code and data by cloning their repositories. Download 457K zip
For technical tax data or bulk forms that might be distributed in compressed formats: While there isn't a single official document or
beir-cellar/beir: A Heterogeneous Benchmark for ... - GitHub Download 457K zip