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How to lock and protect formulas in Excel?

When you create a worksheet, sometimes you need to use some formulas, and you don’t want other users to change, edit or delete the formulas. The easiest and most common way of preventing people from playing with your formulas is to lock and protect cells which contain formulas in your worksheet. Please go to lock and protect the formulas as follows:

Lock and protect formulas with Format Cells and Protect Sheet functions

Lock and protect formulas with Worksheet Design good idea3

arrow blue right bubble Lock and protect formulas with Format Cells and Protect Sheet functions

By default, all cells on a worksheet are locked, so you must unlock all of the cells first.

1. Select the whole worksheet with Ctrl + A, and right click, choose Format Cells from the context menu.

2. And a Format Cells dialog box will pop out. Click Protection, and unchecked the Locked option. Click OK. The whole worksheet has been unlocked.

doc-protect-formulas1

3. Then click Home > Find & Select > Go To Special, and a Go To Special dialog box will appear. Check Formulas from Select option, and then click OK. See screenshot:

doc-protect-formulas2

4. All of the cells which contain formulas will be selected.

5. Then go to lock the select cells. Right click on the selected cells, and choose Format Cells from the context menu, and a Format Cells dialog box will display. Click Protection, check the Locked checkbox. See screenshot:
doc-protect-formulas3

6. And then click Review > Protect Sheet, and a Protect Sheet dialog box will pop out, you can enter the password in the Passwordto unprotect sheet box. See screenshot:

doc-protect-formulas4

7. Then click OK. And another Confirm Password dialog box will appear. Reenter your password. And click OK.

doc-protect-formulas5

And then all cells which contain formulas have been locked and protected. In this case, you cannot modify the formulas, but you can edit other cells.


arrow blue right bubble Lock and protect formulas with Worksheet Design

If you have installed Kutools for Excel, you can lock and protect formulas quickly by using Worksheet Design utility.
Kutools for Excel, with more than 300 handy functions, makes your jobs more easier. 

After free installing Kutools for Excel, please do as below:

1. Click Kutools Plus > Worksheet Design to enable the Design group. See screenshot:
doc protect formulas 1

2. Then click Highlight Formulas to highlight all formula cells. See screenshot:
doc kutools design 2

3.Select all the highlighted cells and click Selection Lock to lock the formulas. And there is a dialog pops out to remind you that the fomulas cannot lock until protect the sheet. See screenshots:
doc kutools design 3

4. Now click Protect Sheet to type the password to protect the sheet. See screenshots:
doc kutools design 4

Note

1. Now the formulas are locked and protected, and you can click Close Design to disable the Design tab.

2. If you want to unprotect the sheet, you just need to click Worksheet Design > Unprotect Sheet.
doc kutools design 5

In Worksheet Design group, you can highlight unlock cell, name range and so on.



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Comments (46)
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This comment was minimized by the moderator on the site
Thank you, this was helpful!
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when i use formula of excel, but i do not want another people see the formula of me. so how to do it ?
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Excel protection for the PC
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:-) Great that really helps. My errant pen mouse would sometimes scrape the cell box and the formula would pop up, and not knowing, sometimes I had changed it. Caused many headaches while doing banking in the totals column. thanks again.
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:roll: NICE EXPLANATION GOOD ONE....
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[quote]:roll: NICE EXPLANATION GOOD ONE....By RIJESH[/quote] Well it looks good, but I have followed it at least 6 times and each time it does not lock any of my formulaes.
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thank you this really helped :lol:
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thanks alot it really helped
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Hi, please help me out, i have 3 columns (Ticket Number, Site ID, Time) i need to copy Site ID and Time according to the Ticket Number from 1st Excel sheet to 2nd excel sheet For Example : I Have Ticket Number 425665 with Three Site ID's UW_GJ_2904 , UW_GJ_1995 , UW_GJ_0960 , So i need to copy all three site id's from 1st Excel sheet to 2nd excel sheet .... But as per vlookup only first site ID is Reflecting UW_GJ_2904 is Reflecting in all three places, which it should not(in some cases for single ticket Ex: 425771 : only one site UW_GJ_0514 will be there, it was reflecting properly, The problem is for each ticket which has more than one site ID is not reflecting properly) First Excel Sheet : Ticket Site id time 425665 UW_GJ_2904 1/21/14 4:51 PM 425665 UW_GJ_1995 1/21/14 4:51 PM 425665 UW_GJ_0960 1/21/14 4:51 PM Second Excel Sheet: ticket site id time 425665 UW_GJ_2904 1/21/14 4:51 PM 425665 UW_GJ_2904 1/21/14 4:51 PM 425665 UW_GJ_2904 1/21/14 4:51 PM if it is only one id its Reflecting properly First excel sheet: 425771 UW_GJ_0514 1/21/14 7:44 PM Second Excel Sheet: 425771 UW_GJ_0514 1/21/14 7:44 PM
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I want to lock the formula cell but it has use to drop and copy
This comment was minimized by the moderator on the site
only one cell like to lock which kept the formula
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;-) thank you very much... :-)
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After long period i found my problem i.e. locking/protection single sell on excel. Thank you very much http://www.extendoffice.com
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The BEST explanation I've found to do This. Thank you!!
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it is very usefully thanks
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Protect Formulas in Excel Spreadsheet
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It is wonderful guide, I have ever seen. Thanks so much for saving my hardwork.
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Thanks very much. This was most useful.
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Thank you! it was helpful. Ali
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Dear author, thank you very much for such a useful guide. Please, advise if it is possible to lock the formula cells in excel so that it is possible to delete other bulk data from the file without deleting the formulas? With the method above, it is not possible to select whole data with ctrl+A and delete. Thank you!
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hi...thank you so much...this was HELPFUL...... :)
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Thanks a lot.. Glad to know to lock the cells
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