Secure Spreadsheet Data File Transferring System

Advent technology of security for secretimportant data and information is called theCryptography. Cryptography is an important aspectof communications security and is a basic buildingblock for computer security. However, the term todayrefers to the science and of transforming message tomake them secure. The Advanced EncryptionStandard (AES) is computer security standard. SHAcryptographic hash function is that a hash-valueserves as a message digest of an input string. Thisthesis provides the encryption and decryption systemfor desire cells in excel (spreadsheet file) that can beused to build a secure and hash code for one or morefiles of person identifiable data. The proposed systemis a data transferring system, which send encryptedexcel data file from one place to another on network.This system implements AES-128 and SHA-256algorithm improve the security of excel data file evenon insecure network