Yes, you can protect the entire workbook or sheet in different levels according to your need - for example you can protect from changing the data in the workbook and only by entering a password in can be unlock it.
To do so {in excel 2010} go to the Review menu and choose Protect workbook or Protect sheet
If you do not have the password, then you cannot open the file. You may need to open it in Excel and then disable the password, and then go back to Works and open the file.
You can do it through the options when saving the file.
In common with most other computer applications you need to know what the password is before you can remove it. This is to prevent unauthorised alterations.Go to the Tool... Protection... Unprotect sheet menu and a dialog box will appear, in which you have to type the password.You can google 'Excel Password Unlocker' and it will give you many options.It wont give you your old password but make you change it so you can get in.
Suppose you have to view an important excel sheet data but you have forget the password then you need to do excel password recovery, unfortunately MS excel doesn't offer any option for password recovery. You can try the following steps but it will work in MS excel 2007 only. 1) Change file extension .zip from .xls/xlsx. 2) Extract this zipped file. 3) Go to the extracted files and navigate to the .xml for the target sheet (found in the 'xl\worksheets' directory) like filename.xml 4) Open this .xml file in to xml editor and file and find <sheetProtection password="CC58" sheet="1"/> line and remove it. 5) Now save this file and change extension back to .xlsx from .zip. You will be able to open your file successfully without any password.
Passwords can be set and changed from the Tools and then Options menu when saving a file.
You need to remember the password to access the files. If you do not remember the password, you will not get in the files. The procedure to hack into MS Office files is not an appropriate topic for this on-line forum, so I will not post the information here.
Click on the Microsoft Office buttonClick on PrepareClick on Encrypt DocumentType the passwordRetype the passwordClick okThe next time you open the document Excel will prompt you to enter the password.---------------Search :How to recover Excel password with Excel Password Unlocker?Step1: Click "Open" to browse the full path of the Excel into the program Step2: On the Recovery tab, select "Brute-force Attack (Trying All Possible Combinations)".Step3: Click "Start" in the Menu to initial the program.Step4: The program is recovering the password. After the recovery successes, you'll see the following dialog pops up, displaying the Password to Open. Click "Remove Both Password to Open and Password to Modify" to remove both the Password to Open and Password to Modify. Click "OK". Use the password provided to open the Excel file to view it.
Excel is not a file, but a computer program that makes spreadsheets.
When you create a spreadsheet or workbook then a corresponding file is created on your machine, that file is known as excel file.
The File name will usually appear at the top of the excel file. It should look something like this: file name - Microsoft Excel...
Pick the Save As option on the File menu. When the dialog box opens, click on the Tools menu at the top corner of that dialog box, and then pick General Options. Type a password in the Password to Open box to set one for the spreadsheet. Most important of all: Do Not Forget It!!!
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