Older Excel versions (97–2003) used weaker encryption, which modern recovery tools can break quickly. Newer versions (Excel 2007 and later) use strong AES encryption – meaning the only practical way to recover a lost “open” password is by brute‑force or dictionary attacks.
A lightweight desktop tool known for high-speed local recovery using CPU and GPU acceleration. lostmypass ms excel password recovery
Even a great tool can hit snags. Here are fixes for frequent problems: lostmypass ms excel password recovery
If the free service fails, it means your password is too strong. This is where the paid service comes in. lostmypass ms excel password recovery