Attackers can attempt to hide malicious payloads in Excel files sent by e-mail by using a standard Excel feature, according to a Tuesday post by Mimecast researchers.

Users who want to encrypt an Excel file before sending it via email have to lock it with a password. The password acts as both the encryption key and a decryption key. To unencrypt a locked Excel ...

R10Cipher supports drag and drop multiple file encryption, and decryption by double clicking a file to recreate it with its original filename. R10Cipher takes text or files and encrypts them. These ...

Sample Data Generation: The script first creates an Excel file (sample.xlsx) using sample data (Name, Age, Email, Gender). Encryption: The encrypt_xlsx_file function reads input.xlsx, encrypts each ...

In this paper, we give a fast decryption method of Excel document encrypted by RC4 algorithm. Through a detailed analysis of document storage structure and encryption process, we illustrate the inner ...