When multiple Excel workbooks need to be delivered to others for review, if worksheet protection is not set, cells, formulas, and template structures may be mistakenly modified. This article uses HeSoft Doc Batch Tool as an example to demonstrate how to add password protection via Excel, batch import xlsx files, enable restricted editing passwords, and choose to protect all worksheets. After processing, Excel can still be opened normally, but users will be prompted that the worksheet is protected when attempting to edit, suitable for office scenarios such as report distribution, data archiving, and template delivery.
In daily office work, many Excel files are not just for personal use but need to be sent to clients, colleagues, subordinate units, or other departments for review. For example, sales reports need to be viewed by management, budget plans need to be confirmed by project leaders, inventory lists need to be checked by warehouse staff, and employee attendance sheets need to be reviewed by department heads. If these xlsx files have no protection, recipients can directly modify cells, delete formulas, adjust data, or change the worksheet structure after opening them. When the files are returned or aggregated again, it is often difficult to determine what has been changed, leading to high rework costs.
A practical method to solve this problem is to add a restriction editing password to the Excel worksheet. Unlike a file-open password, worksheet protection does not prevent others from opening the file but restricts editing of the worksheet content. This means the recipients can view normally but cannot arbitrarily modify protected cells. For batch files, manually setting them one by one would be very tedious, so it is more suitable to use specialized office software for batch processing.
This article uses the " HeSoft Doc Batch Tool " in the screenshots for illustration. It is a software oriented towards batch processing of office files, suitable for centrally completing repetitive Excel, Word, PDF, and other file operations. Below, combining screenshots of before processing, after processing, and the operation steps, we will clearly explain how to batch set worksheet protection passwords for many Excel files.
Applicable Scenario: Restricting Modification, Not Viewing
Many people, when mentioning adding a password to Excel, think of entering a password when opening the file. However, in many office scenarios, we do not want to completely lock the file because the recipient needs to view the content. What truly needs to be controlled is "do not change it casually." In this case, setting a worksheet restriction editing password is more suitable than setting a file-open password.
For example, the finance department releases the annual budget plan, hoping departments can view amounts and categories but not alter formulas; the sales department distributes quarterly sales data, hoping regional heads can view performance but not modify historical records; project managers send progress sheets, hoping team members understand milestones but not accidentally delete key dates; the administrative or HR department sends attendance, scheduling, or training roster tables, often needing to protect the final version.
When the number of these files is large, the value of batch processing becomes evident. HeSoft Doc Batch Tool can add multiple Excel files to the list, uniformly set the "restriction editing password" and "protect all worksheets," avoiding opening files and setting protection sheet by sheet.
Effect Preview: From Editable State to Protected State
Before processing, the Excel file is in a normal editable state. In the screenshot below, the user has opened the right-click menu in Sales_Report_Q1.xlsx, and can see operations like "Cut," "Copy," "Insert," "Delete," and "Clear Contents." While these functions are convenient when editing a table, if the file is a version for distribution or archiving, it means others can also easily modify the table content.

After processing, when a user tries to change a cell or chart, Excel pops up a prompt indicating that the cell or chart is on a protected worksheet. To change it, worksheet protection needs to be removed, and a password may be required. This prompt is exactly the manifestation of the worksheet protection taking effect. Users can still see the content in the table but cannot directly modify it as they could before processing.

From these two screenshots, it is clear that batch adding a restriction editing password does not turn the file into an unopenable "black box" but adds a layer of control between viewing and editing. For files where you only need to share results and do not want others to change the original data, this protection method is more aligned with daily office needs.
Operation Steps: Batch Setting Worksheet Protection for Excel Files
Step 1: Find the Add Password Protection Function in Excel Tools
After launching HeSoft Doc Batch Tool , first select "Excel Tools" in the left navigation. The right-side function area will display batch operations related to Excel. The first function in the screenshot is "Excel Add Password Protection," indicating it is used for batch adding file open passwords, read-only passwords, and other protections to Excel. To set worksheet restriction editing in this article, enter from this entrance.

The key to this step is selecting the correct function entrance. Do not select "Excel Remove Password Protection," nor choose functions like converting to PDF or format conversion. Only by entering "Excel Add Password Protection" will subsequent processing options like file open password, file content read-only password, and restriction editing password appear.
Step 2: Import the Excel Files Needing Unified Protection
After entering the function page, the software will proceed to Step 1 "Select records to process." The top right of the page provides two common buttons: "Add Files" and "Import Files from Folder." If you only need to process a few files, you can use "Add Files" to select them one by one; if you have already placed all the xlsx files to be processed in one folder, selecting "Import Files from Folder" is more efficient.

The list in the screenshot has already been loaded with multiple Excel files, and the software will display information such as file name, path, extension, creation time, and modification time. This information helps check if the wrong files were selected before batch processing. The path column is especially important; if multiple files with the same name exist on the computer, the path can confirm which one is currently being processed.
After importing files, it is recommended to perform three checks: First, confirm that all files in the list belong to the scope of this protection; second, confirm that the extension is an Excel file, such as xlsx; third, confirm that no temporary files, test files, or files not needing protection have been mixed into the list. After the check is complete, click the "Next" button at the bottom to enter the processing options.
Step 3: Only Enable the Restriction Editing Password, Do Not Confuse with Other Password Types
In Step 2 "Set processing options," you can see three switches: "File Open Password," "File Content Read-Only Password," "Restriction Editing Password." If the goal is for others to enter a password before opening the file, you can set the file open password; if the goal is for the file content to be read-only, you can consider a read-only password. However, the core of this article is to prevent the worksheet from being modified, so the "Restriction Editing Password" should be enabled.

In the screenshot, the "Restriction Editing Password" is already enabled, and "Restriction Edit Type" appears below. "Protect all worksheets" is selected here. This is a very critical step, because a workbook may contain multiple worksheets. If it only takes effect on part of the content, some sheets might remain editable. Selecting to protect all worksheets can ensure that each worksheet in the Excel file is protected, which is more suitable for unified rules when batch processing multiple files.
In "Password for removing restriction (can be left blank)," you can enter the password used to unprotect. The example in the screenshot fills in 1234321. In actual office work, it is advisable to use an internally agreed-upon password and record it in a safe place. If the password is lost, it will increase maintenance costs when the file needs to be modified later.
Step 4: Continue to Set the Save Location and Start Processing
After completing the restriction editing options, click "Next." From the page top process bar, it can be seen that there are two subsequent stages: "Set Save Location" and "Start Processing." Although the screenshot does not expand the save location page, following the wizard process, you need to determine where to save the processed files, and then execute the start processing.
It is recommended here not to directly overwrite the original files, especially when using this function for the first time. The output files can be saved to a separate folder, such as "Protected Version" or "After Worksheet Protection," which allows for easy result checking and also enables returning to the original files if needed. After setting the save location, proceed to the start processing step and wait for the software to complete the batch operation.
Common Questions and Precautions
1. Can content still be copied after processing?
Worksheet protection mainly controls editing behavior. Whether copying, cell selection, etc., are possible depends on the Excel protection settings and the file's own state. The screenshots in this article verify that attempts to modify cells are intercepted, achieving the purpose of preventing arbitrary modification.
2. Why does it prompt "Unprotect Sheet" when modifying?
This is Excel's own prompt, indicating that the current cell or chart is on a protected worksheet. To modify it, you must unprotect the worksheet; if a password is set, you need to enter the correct password.
3. Is it necessary to set a file-open password at the same time?
Not necessarily. If your goal is to prevent unauthorized persons from viewing the content, you can set a file-open password; if it's just to prevent modification, a restriction editing password is usually more suitable. Do not mix different password types to avoid adding unnecessary barriers for those who need to view the file normally.
4. Is it suitable for processing workbooks containing multiple Sheets?
Yes. The Excel file in the screenshot has Sheet1, Sheet2, Sheet3 at the bottom. After selecting "Protect all worksheets," it is suitable for adding protection uniformly to multi-worksheet workbooks, reducing omissions.
5. Should I test one file before batch processing?
It is recommended to test the effect with one or two files first. After confirming that the opening, viewing, and editing prompts meet expectations, then process the entire folder. This can reduce the risk of rework after large-scale batch processing.
Summary: Uniformly Setting xlsx Worksheet Protection to Make Shared Files Safer
Batch adding worksheet restriction editing passwords to Excel files essentially delegates a large number of repetitive manual protection operations to office software for automatic completion. Through HeSoft Doc Batch Tool , you can enter "Excel Add Password Protection" in Excel Tools, import multiple xlsx files, enable the "Restriction Editing Password," select "Protect all worksheets," then set the save location and start processing.
Processed Excel files can still be opened and viewed normally. However, when others try to modify a cell, they will see a prompt that the worksheet is protected. For report distribution, template delivery, data archiving, and cross-departmental sharing, this method takes into account both reading convenience and reduces the risk of accidental modification. If you have a batch of Excel files that need protection, it is recommended to first organize the folder according to the process in this article, and then perform a one-time batch process, saving time and improving file management standardization.