how to encrypt excel file

When you process some files, if you think it is important, you will set a password for the file, just like setting a password for your phone. If you need to view the password, you need to enter the password, in fact, the principles are similar. How can we encrypt a PDF file? Next let's take a look at the small series of operation methods. 1: In the first step, w

related Non-relational database: MongoDB, Redis NoSQL all data is key:value form of MONGODB data is present on disk Redis data are present in memory connected MySQL databaseThe data is: The output is: However, if the Fetchall is run first, then run Fetchone or Fetchmany, it will not get, will return none, this is similar to the file operation, the pointer has been moved to the tail. You can also execute an INSERT statement: But it is im

How do you encrypt Excel tables? In the day-to-day office, we sometimes encounter the need to encrypt some documents, files, and so on, where the small series on the spreadsheet encryption method to do a simple introduction. First Excel version is not the same, there may be some different places, but overall is still t

Office software is perfect for security because it's office software, so it's often possible to design company secrets and privacy. Therefore, Microsoft in the development of each version of Office will have the ability to encrypt files, previously mentioned word encryption techniques, we remember. Let me tell you today how to encrypt Excel forms. Many netizens m

Today's small series to introduce you to the excel2010 how to encrypt the document to protect personal information security. First step: Open the need to encrypt the document, select the file options Step Two: Select information-Protect Workbook-Encrypt with password Step three: Repeat the password you

How to Use DM-Crypt to encrypt a Linux File System? Readers often ask us how to implement a file system encryption method for Linux. Before discussing this topic in depth, I would like to clarify two points: First, it is difficult to find enough information on the Internet. So I will introduce you to a few really great resources that are hard to find (actually s

Baidu cloud file How to encrypt 1, we click on the computer "computer Baidu Cloud Interface" effect as shown below 2, and then we find the file as shown below the effect is as follows 3, then we select the file right click on the pop-up menu, click to Share 4, out of the selection of items,

There are many methods to encrypt files, but there are some shortcomings in the traditional file-based encryption methods. For example, the headache of cryptographic technology, complex full-text encryption/decryption algorithms, and the generation of spam files. Here I will introduce you to a new idea of file encryption. Right-click a

PHP has no way to encrypt the video file address, that is, the Client's original file cannot see the real address.

Like Windows BitLocker, the Encrypting File System (EFS, Encrypting File System) is a set of public key-based encryption mechanisms built into windows that can encrypt files and folders on NTFS partitions, enabling real-time, Transparently encrypts the data on the disk.Cryptographic operationsEncryption method The user is transparent, after the

[Publish AAR To Maven] use GPG To encrypt the file signature, This article is affiliated with "use Gradle to publish AAR to Maven repository". This file is still being drafted because it involves many things... ========================================================== ======================Author: qiujuerBlog: blog.csdn.net/qiujuerWebsite: www.qiujuer.netOp

// Encrypted string. Note that the strencrkey length is 8 bits. (to increase or decrease the key length, adjust the IV length)Public String desencrypt (string strtext, string strencrkey)　 // Decrypt the string. Note that the strencrkey length is 8 bits (to increase or decrease the key length, adjust the IV length) Public String desdecrypt (string strtext, string sdecrkey) // Encrypt the data file. Note tha

How to encrypt a USB drive file We are now in contact with the computer, computer file security has been more and more people pay attention to. Many people will put some important information on the U disk, in case the U disk lost how to do, there are many contract documents, company secrets, private privacy, which need to en