: Most installers include both 32-bit and 64-bit versions. It is generally recommended to use the 32-bit version for better compatibility with older add-ins, unless you specifically need the 64-bit version for large Excel spreadsheets.
While the software itself can be downloaded, it is not free to use legally. You require a valid 25-character product key to activate the software. If you are looking for a "free" activated version, that constitutes software piracy, which carries legal risks and security threats (malware/ransomware). : Most installers include both 32-bit and 64-bit versions