How to Prevent Excel Cell Editing Until Six Months Have Passed in WPS Office Spreadsheets
Question details
The user needs to prevent editing of selected spreadsheet cells until a date at least six months after a qualifying date has passed, using a real restriction rather than visual formatting only.

- Product
- WPS Office Spreadsheets
- Device & OS
- not provided
- Scenario
- A user is managing a worksheet where certain cells must remain uneditable until six months after a specified reference date.
- Observed behavior
- Conditional formatting alone changes appearance but does not prevent editing, so an enforced Data Validation rule or worksheet protection is required.
Identify the qualifying date cell, for example A2, and select the cells that users must not edit before six months have passed. Confirm that the reference cell contains a real date value, not text, so the EDATE and TODAY formulas can compare dates correctly.
Create a Data Validation Rule That Blocks Editing Until Six Months Have Passed
Use this for most workbooks: it rejects typing in the protected cells until the current date reaches six months after the reference date, and it does not require macros.
This method uses a custom Data Validation formula in WPS Office Spreadsheets. The same rule works in .xlsx files and remains active when the workbook is opened in Microsoft Excel.
Open the workbook in WPS Office Spreadsheets and select the cells where editing should be blocked until six months after the qualifying date.
Go to the Data tab, click Data Validation or Validation, and select Data Validation from the menu.
On the Settings tab, set Allow to Custom and enter =TODAY()>=EDATE($A2,6) in the Formula box. Replace $A2 with the cell that contains the qualifying date.
Open the Error Alert tab, set Style to Stop, enter a title such as 'Editing locked', and enter the message 'Editing is unavailable until six months have passed.'
Click OK, then attempt to type in one of the restricted cells before the six-month period ends to confirm that the Stop alert appears.

Protect the Worksheet to Stop Users from Pasting or Removing the Validation
Use this after applying Data Validation if the workbook is shared or if users could paste values into the restricted cells or delete the validation rule.
Prevent Early Cell Editing in WPS Office Spreadsheets with Data Validation
WPS Office Spreadsheets can enforce a six-month editing lock with a custom Data Validation formula. After the qualifying date passes, the cells become editable automatically, and sheet protection prevents users from pasting over the rule.
- 1. Open your workbook in WPS Office Spreadsheets: Download and install WPS Office from the official WPS site, then open the workbook containing the date and restricted cells.
- 2. Select the restricted cells: Click the Data tab, choose Data Validation, and select the cells that should not be edited before the six-month period ends.
- 3. Apply the six-month custom formula: Set Allow to Custom and enter =TODAY()>=EDATE($A2,6), replacing $A2 with the cell that contains the qualifying date.
- 4. Set a Stop alert message: In the Error Alert tab, set Style to Stop and enter a message such as 'Editing is unavailable until six months have passed.'
- 5. Protect the worksheet: Go to Review > Protect Sheet and enable protection so users cannot paste into the restricted cells or remove the Data Validation rule.

Frequently Asked Questions
How do I unlock cells automatically after six months?
Use a custom Data Validation formula such as =TODAY()>=EDATE($A2,6). After the current date reaches six months from the date in $A2, the rule returns TRUE and users can edit the cells without manual changes.
Can I use conditional formatting to prevent cell editing?
No. Conditional formatting only changes how a cell looks. To block editing, use Data Validation with a Stop alert and protect the worksheet if you need to prevent pasting or rule changes.
Will users be able to paste into the restricted cells?
Data Validation alone can sometimes be bypassed by pasting. Protect the worksheet after creating the validation rule to prevent pasted values and to stop users from deleting the rule.
Does this Data Validation rule work in Microsoft Excel?
Yes. The custom rule is saved in the .xlsx workbook, so it works in both WPS Office Spreadsheets and Microsoft Excel with the same EDATE and TODAY functions.
What if the qualifying date is in another cell?
Change $A2 to the actual reference cell in the formula, for example =TODAY()>=EDATE($C5,6), and make sure the active cell in the selected range matches the row reference.




