A freeware program that does encryption for Excel spreadsheets. Does not use any built-in Excel protection construct. Instead, it alters cells values in sheets (or ranges) selected by the user. Uses an external encryption key text file that is read in by the program. Offers 601 bit encryption, which is easily expandable to 3001 bits. Runs in VBA for Excel. Requires Excel 2007 and above.
||Excel 2007 and above