When a batch of Excel reports, lists, or ledgers needs to be sent to colleagues or clients for review, the biggest concern is often not that the files cannot be opened, but that they may be mistakenly altered, overwritten, or re-edited. This article explains how to use HeSoft Doc Batch Tool to batch-add read-only protection passwords to multiple Excel files such as xlsx, xls, so that the files can be opened and viewed normally, but are protected when attempting to modify cells or charts. This is suitable for scenarios where batch anti-modification is required, such as financial statements, client data, project plans, and inventory sheets.
In daily office work, many Excel files are not just for personal use but need to be sent to others via email, enterprise messaging apps, cloud drives, or shared folders for review. For example, the finance department needs to distribute monthly budget sheets, administrative staff share employee information lists, and operations teams send sales reports to multiple collaborators. If these Excel workbooks have no protection, recipients can easily delete formulas, alter data, move worksheets, or even save and overwrite the original file during viewing, making subsequent accountability and recovery very troublesome.
If there are only one or two files, you can of course set protection individually within Excel. But when the number of files reaches dozens or even hundreds, opening each one, setting a password, saving, and closing becomes very time-consuming and it is easy to miss a file. This article aims to solve exactly this problem: using the "Excel Add Password Protection" feature of the office software " HeSoft Doc Batch Tool " to batch-add read-only restriction passwords to multiple Excel files, achieving an effect of "viewable but not arbitrarily editable," reducing repetitive operations and lowering the risk of files being accidentally modified.
Applicable Scenarios: Which Excel Files Are Suitable for Batch Adding Read-Only Restriction Passwords
Batch adding read-only restriction passwords to Excel is suitable for all files that need to be distributed for viewing but not directly edited by the recipient. The emphasis here is not on completely hiding the file, but on placing its contents in a protected state where others can open, read, filter, or browse, but any attempt to modify protected areas will be intercepted by an Excel prompt.
- Financial files: Such as monthly budget sheets, expense summaries, cost analysis sheets, income statistics tables, etc., which usually contain formulas and summary results and should not be arbitrarily altered.
- Personnel and administrative files: Such as employee lists, attendance summaries, asset ledgers, customer information, etc., which need to be viewed by multiple people but whose original data should remain stable.
- Project management files: Such as project plans, task schedules, delivery lists, acceptance records, etc., which, when sent to external parties for confirmation, can prevent direct modification of the workbook content.
- Inventory and sales reports: Such as inventory tracking sheets, sales reports, product lists, etc., suitable for batch setting of edit restrictions to prevent key fields from being mistakenly altered.
- Template Excel files: Such as quotation templates, data reporting templates, statistical templates, etc. If the structure and formulas need to be retained, protection can also be batch-set for multiple templates.
The software name in the screenshot is " HeSoft Doc Batch Tool ", and it is positioned as a batch processing software for office files, with its core value being the ability to process a large number of files at once, reducing manual repetitive work. For users needing to batch-protect Excel files like xlsx and xls, it is more suitable than manually setting protection file by file.
Effect Preview: What is the Difference Before and After Processing
Before Processing: Excel Files Can Be Directly Edited
Before processing, multiple Excel files are usually just regular workbooks. When others open them, they can directly click a cell to enter content, delete data, change formulas, adjust table structure, and might even save and overwrite them unknowingly. For files needing to maintain data consistency, this state presents a clear risk.
If the number of files is large, it is also very difficult to manually check whether each Excel file has been protected. Especially when a single folder contains multiple tables like Customer_Data.xlsx, Employee_List.xlsx, Financial_Analysis.xlsx, Inventory_Tracker.xlsx, and Monthly_Budget.xlsx, opening each one to set a read-only restriction password takes up a significant amount of time.
After Processing: A Prompt Appears Stating the Sheet is Protected When Trying to Modify
After batch processing using "Excel Add Password Protection", the files can still be opened and viewed, but when a user tries to change a cell or chart, Excel will prompt that the cell or chart is on a protected sheet, and unprotecting the sheet—possibly requiring a password—is needed to make changes. This result exactly meets the requirement of "preventing others from modifying."

As seen from the effect image, Excel pops up a protection prompt, indicating that the read-only restriction has taken effect. For recipients, they can still browse the table content; for file managers, key data and table structure are more stably protected. It is important to note that this type of protection is more suitable for preventing accidental edits and general modifications, and should not be understood as a top-tier data encryption solution.
Operation Steps: Batch Adding Read-Only Restriction Passwords to Excel Files
The specific operations are described below according to the order of the screenshots. The entire process can be understood as four steps: selecting the function, importing files, setting the read-only restriction password, and setting the save location before starting processing. There is no need to open Excel files individually during the operation, making it suitable for batch processing.
Step 1: Enter the Excel Tool and Select "Excel Add Password Protection"
After opening HeSoft Doc Batch Tool , select "Excel Tools" from the tool category on the left. Find "Excel Add Password Protection" in the function list on the right. As seen from the screenshot, this function description is for batch adding file open passwords and read-only passwords, etc., which precisely matches the need to batch-add protection passwords to Excel files.

The purpose of this step is to enter the correct batch processing module. When dealing with Excel anti-modification issues, many users easily confuse functions like "Convert Format" and "Export to Image." The one to select here is "Excel Add Password Protection," not "Excel Remove Password Protection" or format conversion functions. After selection, the software will enter the task flow for adding password protection.
Step 2: Add the Excel files to be processed or import from a folder
After entering the function page, you can see the "Add Files" and "Import files from folder" buttons at the top of the interface. If processing only a few specific tables, you can click "Add Files"; if a folder contains many Excel files waiting to be protected, you can click "Import files from folder," which is more suitable for batch processing.

After files are imported, the page displays a list of pending records, including information such as serial number, name, path, extension, creation time, and modification time. The screenshot shows multiple xlsx files that have entered the list, such as Customer_Data.xlsx, Employee_List.xlsx, Financial_Analysis.xlsx, Inventory_Tracker.xlsx, etc. Through this list, users can confirm whether the files are correctly selected, whether the paths are correct, and whether the extensions meet expectations.
If a file is added by mistake, it can be removed via the delete icon in the right operation column; if there are many files, the filtering and sorting buttons in the interface can also be used to assist in checking. After confirming the pending files are correct, click "Next" at the bottom to enter the processing options settings.
Step 3: Enable "Restrict Editing Password", Select the "Read-Only" Type, and Enter a Password
On the "Set Processing Options" page, you can see several password protection-related options, including "File Open Password," "File Content Read-Only Password," and "Restrict Editing Password." The goal of this tutorial is to prevent Excel files from being modified arbitrarily, so the focus is on selecting "Restrict Editing Password."

According to the screenshot, the "Restrict Editing Password" switch should be enabled. Once enabled, the "Restrict Editing Type" appears below, containing options like "Read Only," "Protect Workbook Table Structure," and "Protect All Worksheets." If the goal is to prevent others from directly modifying table content, you can choose "Read Only." Then enter the password in the "Password to lift restriction" input field; for example, the screenshot demonstrates entering 12345. In actual use, it is recommended to set a more complex password known only internally, avoiding overly simple ones.
This step is very critical because different options correspond to different protection goals. If "File Open Password" is enabled, a password is required to open the file, suitable for scenarios where unrelated persons should not view the content; this tutorial emphasizes "viewable but not arbitrarily editable," so enabling "Restrict Editing Password" and selecting "Read Only" is more appropriate. If your files need both view protection and modification protection, you can combine the password options provided in the interface according to actual needs, but ensure you keep a good record of your passwords.
Step 4: Set the Save Location as Prompted to Avoid Overwriting Original Files
After setting the processing options, click "Next" to enter "Set Save Location." Although the current screenshot does not show the specific details of this page, it can be seen from the process bar that the software sets the save location in the third step. It is recommended to save the processed Excel files into a new output folder, such as "Read-Only Protection Added" or "Protected Version," to distinguish between the original files and the processed files.
This has two benefits: first, the original files are still retained, convenient for subsequent internal editing or reprocessing; second, only the protected versions are sent to external parties, reducing the probability of accidentally sending unprotected files. For batch files, setting the save location clearly is very important; otherwise, it might be difficult to determine which files have already had read-only restriction passwords added after processing.
Step 5: Start Processing and Check the Results
After confirming the save location, enter the final "Start Processing" step. Initiate the task according to the interface prompts, and the software will batch-process the multiple Excel files in the list. As this is a batch office file processing software, users do not need to open xlsx or xls files individually; just wait for the task to complete.
After processing is complete, it is recommended to randomly open one or two output files for verification. The verification method is simple: after opening the Excel file, try to modify a cell. If a prompt similar to "The cell or chart you are trying to change is on a protected sheet" appears, it means the read-only restriction has taken effect. If re-editing is needed, the person with the password should unprotect the sheet first before making changes.
Common Questions and Considerations
1. What is the difference between a read-only restriction password and a file open password?
The file open password emphasizes "whether the file can be opened"; the content cannot be viewed before entering the password. The read-only or restrict editing password emphasizes "whether the content can be modified"; usually, it can be opened and viewed, but modifications are restricted. The scenario in this article is about preventing others from modifying Excel, so the focus is on using the restrict editing password and the read-only type.
2. After setting read-only, can others still copy the content?
Read-only restrictions primarily aim to prevent direct editing of worksheet content. Whether copying, filtering, or other operations are possible might depend on Excel's own protection rules and file settings. For highly sensitive data, it is recommended to combine file open passwords, permission management, or PDF publishing for comprehensive control.
3. Can the password be left blank?
The prompt next to "Password to lift restriction" in the screenshot indicates it can be left blank, but if your goal is to prevent others from lifting the restriction, it is recommended to enter a password and keep it safe. Otherwise, the protection strength may not meet actual management needs.
4. Is a backup needed before batch processing?
It is recommended to keep the original files or save the output to a new folder. The advantage of batch processing is speed, but it also means many files are affected at once. Keeping the original version first can reduce losses if settings are wrong, passwords are forgotten, or re-editing is needed.
5. Which Excel files are supported?
From the file list in the screenshot, the example file extension is xlsx; the function name is Excel Add Password Protection, indicating it is suitable for processing common Excel workbooks. Before actual processing, it is recommended to test with a small number of xlsx, xls, etc. files first to confirm the results fit your office workflow.
Summary: Using Batch Processing Tools to Reduce Repetitive Settings and Improve Excel File Distribution Security
The core value of batch adding read-only restriction passwords to Excel files lies in balancing viewing convenience with content stability. For reports, ledgers, lists, and templates that need to be sent to multiple people for viewing, setting protection individually and manually is not only inefficient but also prone to oversight. Using the "Excel Add Password Protection" feature of HeSoft Doc Batch Tool , actions like selecting files, setting restrict editing passwords, and batch outputting can be completed centrally.
If you currently have a batch of xlsx, xls workbooks that need to be sent to colleagues, clients, or partners, but you do not want the recipients to modify the contents freely, it is recommended to follow the steps in this article: first import the files, enable "Restrict Editing Password," select "Read Only," set the password for lifting restrictions, and then batch-generate protected versions. This not only reduces repetitive labor but also makes Excel files more controllable after distribution.