This tool can reset encryption in excel sheets and templates.
ExcelDecryptor by Thegrideon Software allows you to reset MS Excel spreadsheet and template passwords. This tool has the ability to process any number of Excel files simultaneously. The performance remains similar, no noticeable effect on performance. It will work with all MS Excel documents saved with Office 97/2000 compatible encryption. For example, *.xls files saved from Office 2007-2013 and Excel XP/2003 files saved with the default settings are compatible. The passwords may be of any length and complexity. It will allow simultaneous processing of multiple files. MS Excel Workbook, Sheets, Write Protection and Shared Book passwords are recovered easily. This tool is constructed such that it can take advantage of multi-threading. Thus when you have suitable hardware, the processing can get significantly faster. It also utilizes NVIDIA and AMD GPUs (Graphics Processing Units) for processing acceleration. This software tool is compatible with the Windows platform right up to Windows 8.
ExcelDecryptor allows you to reset your spreadsheet passwords, but doesn`t recover the passwords which these MS Excel files are protected with. ExcelDecryptor`s algorithms are based on the fact that protected *.xlt and *.xls files are most often encrypted with short fixed length "encryption keys". This program recovers these keys quite easily.
The keys allow the tool to decrypt protected documents without the original passwords. The developers have prepared a set of key lookup tables (Rainbow tables) for a default 40-bit encryption with coverage close to 100%. These tables let them offer you fast guaranteed decryption service for your MS Excel files within minutes. This can be done in minutes and a small fee is charged. You could utilize this service in one of two ways. The files could be uploaded. Alternately, you could just open your protected file in ExcelDecryptor and send the "Signature" line from the program log. This is a very good product.