The most common risk when sharing multiple xlsx spreadsheets with others is that the other party directly edits and saves them, causing the original data to be overwritten. By batch-adding read-only passwords to Excel file content, you can prompt for a write permission password when the file is opened, or view it in read-only mode. This article describes the method for batch processing Excel files using HeSoft Doc Batch Tool , covering key steps such as before-and-after effects, importing files, setting read-only passwords, saving, and verification.
Many office workers encounter this situation: a folder contains a batch of Excel files, such as 1.xlsx, 2.xlsx, 3.xlsx, 4.xlsx, ready to be sent to others for viewing. The file contents themselves are not confidential, and recipients are allowed to open and browse them; however, these spreadsheets are official versions, and you do not want them to be modified and saved by others, or have data, formulas, and formatting damaged by accidental operations. In this case, setting a read-only password for the Excel files is a practical choice.
If there is only one spreadsheet, you can handle it manually in Excel; but as the number of files increases, opening each one to set a read-only password is not only slow but also prone to issues like forgetting to set a file, inconsistent password entry, and confusion in save locations. This article will introduce how to use the batch office processing software " HeSoft Doc Batch Tool " to batch-add content read-only passwords to multiple xlsx, xls, and other Excel files, achieving a file management effect of "viewable, less prone to mistaken edits, and easy to distribute."
Applicable Scenarios: The Use of Batch Setting XLSX Read-Only Passwords
Batch setting content read-only passwords for Excel files is not to make the files completely unopenable, but to add a write permission reminder during sharing and collaboration. When the recipient opens the file, Excel will prompt for a password to gain write permission; if there is no password, they can also choose to open it in read-only mode. This can effectively reduce the probability of accidentally editing the original file and saving it.
- Sharing Product Catalogs: Product lists, bill of materials, basic quotation sheets, etc., need to be viewed by many but are generally not intended for arbitrary changes.
- Distributing Statistical Results: Annual reports, survey results, project statistical data that have been confirmed need to be distributed as read-only.
- Cross-Department Circulation: Multiple departments need to view the same batch of Excel files, but editing permissions are reserved for a few responsible persons.
- Archiving Historical Versions: Ledgers, lists, and records from a specific time point need to be preserved as-is to prevent accidental saving later.
- Batch Sending of Materials: When sending multiple xlsx files to clients or suppliers, you want to reduce version confusion caused by content being altered.
The positioning of HeSoft Doc Batch Tool is a batch office file processing tool, suitable for handling repetitive tasks in Excel, Word, PDF, and other files. For the requirement in this tutorial, it can merge the operation of "setting read-only passwords for individual spreadsheets" into a single batch task, making it particularly suitable for scenarios with a large number of files.
Effect Preview: The Difference Between Without and With a Read-Only Password
Before Processing: The Spreadsheet Enters an Editable State Directly
Before processing, when the Excel file is opened, the user can see the worksheet content and can directly select cells for editing. The sample file contains fields like product list, category, quantity, unit, and remarks, representing a typical business data sheet.

In this state, as long as the user has file access permission, they can modify cell content, adjust formatting, or save the file. If this is the official version of the spreadsheet, it's difficult to determine later what content has been changed. The risk of the original file being overwritten is even higher, especially during multi-person circulation.
After Processing: A Write Permission Password Prompt Appears When Opening the File
After processing is complete, opening the same Excel file will bring up a password prompt window. The window content shows that a password is needed to gain write permission, or you can open it in read-only mode. The arrow in the screenshot points to the "Read Only" button, indicating that the file can still be viewed without the write permission password.

This effect is very suitable for the scenario of "only wanting others to view, not to edit." If the recipient only needs to view the data, they can click read-only to open it; for those who genuinely need to modify the file, they enter the password to obtain write permission. Compared to verbally reminding "do not modify the file," a read-only password is more intuitive and easier to enforce.
Operation Steps: Using Office Software to Batch-Add Content Read-Only Passwords to Excel
Step 1: Find Add Password Protection in Excel Tools
After launching HeSoft Doc Batch Tool , select "Excel Tools" in the left navigation bar. The central function area will display multiple batch processing capabilities related to Excel, such as Excel Find and Replace, Excel Add Password Protection, Excel Remove Password Protection, Excel to PDF, Excel to Xlsx, etc.

What we want to achieve this time is batch adding of read-only passwords, so select "Excel Add Password Protection." From the function card description, you can see that this function is used to batch-add protection measures like file open passwords and read-only passwords to Excel. The "read-only password" here directly corresponds to the file content read-only password discussed in this article.
After selecting this function, the software enters the specific task page. The progress bar at the top of the page shows 4 stages: Select Records to Process, Set Processing Options, Set Save Location, and Start Processing. For batch tasks, this step-by-step approach helps users confirm the files first, then confirm the password settings, and finally output the results.
Step 2: Import Multiple XLSX Files
In the first step, "Select Records to Process," you need to add the Excel files for which you want to set read-only passwords to the list. The top right of the page provides two common entry points: "Add Files" and "Import Files from Folder." If files are scattered in different locations, you can use "Add Files"; if the files are concentrated in the same folder, using "Import Files from Folder" is more convenient.

The screenshot shows 4 xlsx files successfully imported, with the list displaying information like serial number, name, path, extension, creation time, and modification time. It is recommended to focus on checking three points here: first, whether the number of files matches expectations; second, whether the path is the correct folder; third, whether the extension is the Excel format that needs processing.
If files that do not need processing are mixed into the list, you can click the delete icon on the right side of the corresponding row to remove them; if you want to re-select, you can use "Clear." Once confirmed, click "Next" at the bottom of the page to enter the password option settings.
Step 3: Only Enable File Content Read-Only Password and Enter the Password
After entering "Set Processing Options," you can see three password-related setting items: File Open Password, File Content Read-Only Password, and Restrict Editing Password. To achieve the effect of "others can view but cannot easily modify," you need to enable "File Content Read-Only Password."

In the screenshot, "File Content Read-Only Password" is already enabled, and the example password 123456 is entered in the input box below. This password will become the password for gaining write permission when opening the file. After this setting, when someone opens the processed Excel file, if they don't know this password, they can choose to open it in read-only mode; if they know the password, they can gain editing permission.
It is very important to distinguish between "File Open Password" and "File Content Read-Only Password" here. File Open Password is more about controlling whether a file can be opened; File Content Read-Only Password is more about controlling whether it can be edited and saved. The goal of this article is to prevent modification, so you should focus on setting the latter. If you also want to restrict opening and editing at the same time, you can consider other options based on actual needs, but do not enable them casually without confirming the requirements to avoid affecting the recipient's ability to view the file.
Step 4: Choose the Save Location for Processed Files
After continuing to click "Next," you will enter "Set Save Location." Although the screenshot does not show the specific save location page, it is clearly visible from the top progress bar that this is the third step of the batch processing task. It is recommended not to mix the processed files directly into the original directory; it is best to create a separate output folder, such as "Read-Only Password Version xlsx" or "Protected Excel."
This has two benefits: first, the original and processed files are easy to distinguish, avoiding sending the wrong version; second, if the password settings do not meet expectations, you can return to the original files to re-process. This step is particularly important for files like important reports, formal quotations, and contract attachment ledgers.
Step 5: Start Processing and Check the Read-Only Prompt
After confirming the save location, enter the "Start Processing" stage and execute the batch processing according to the interface flow. After processing is complete, it is not recommended to send the files in batch immediately; instead, open one or two of the result files first for verification. During verification, focus on observing whether the write permission password prompt appears and whether you can click "Read Only" to open.
If the password window appears when opening the file, consistent with the effect preview, it indicates that the Excel content read-only password has been added successfully. For a large number of files, you can spot-check spreadsheets with different file names and business types to ensure consistent settings.
Common Questions and Considerations
Does a read-only password completely prevent others from saving a copy?
The content read-only password is mainly used to restrict the write permission of the original file, reducing direct modification and overwriting. It is not equivalent to a strict data leak prevention system. For highly sensitive materials, you still need to combine it with file permissions, encrypted transmission, account access controls, and other methods.
After setting a read-only password, can I still edit the file later?
Yes. As long as you remember the set password, you can enter it when opening the file to gain write permission. Therefore, password management is very critical. It is recommended to use the team's internal standard password management practices rather than relying solely on personal memory.
Why process in batch instead of setting individually in Excel?
When the number of files is large, manual operation takes up a lot of time and it's easy to miss a file. Batch processing allows for unified import, unified settings, and unified output, making it more suitable for repetitive office tasks and easier to maintain consistent rules.
Should I close open Excel files before processing?
It is recommended to close relevant Excel files before processing to avoid processing failures or save anomalies due to files being in use. Especially when multiple files are in the same directory, first confirm they are not opened by Excel or other programs.
Is a more complex password always better?
The password should balance security and usability. One that is too simple is easy to guess, and one that is too complex may increase team communication costs. It is advisable to use a combination that is not easy to guess for official files and communicate it through a secure channel to those with editing permissions.
Summary: Batch Setting Read-Only Passwords for Excel Makes Spreadsheet Distribution More Secure
When sharing multiple xlsx spreadsheets, the biggest fear is not that others will see the content, but that they might mistakenly edit, save, and overwrite the official version. By adding a content read-only password to Excel files, the file will prompt for a write permission password upon opening, while still allowing read-only viewing, thereby better protecting the original content.
Using HeSoft Doc Batch Tool , you can select "Excel Add Password Protection" in Excel Tools, import multiple Excel files at once, uniformly enable "File Content Read-Only Password," then set the save location and start processing. Compared to opening each Excel file manually to set, this method saves time and is more suitable for managing batch office files.
If you are organizing a batch of Excel files that need to be sent out or archived, it is recommended to first batch-add read-only passwords according to the method in this article, and then open the resulting files to verify the prompt window. Distributing them after confirmation can effectively reduce the risk of files being accidentally modified.