How to set a unified password for opening multiple xlsx files? Tutorial on batch protection of Excel workbooks


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Many enterprise documents are often stored separately across multiple xlsx workbooks, such as budget plans, sales reports, inventory lists, employee attendance records, and customer feedback. If these Excel files do not have an open password set, once the files are forwarded or copied, the content can be directly viewed. This article uses HeSoft Doc Batch Tool as an example to explain how to use the batch processing capabilities of office software to uniformly add file open passwords to multiple Excel files, so that each workbook requires a password before opening, thereby enhancing the access security of sensitive spreadsheets.

In day-to-day company collaboration, it's often not just one Excel file, but a batch. The finance department might have a dozen budget sheets, HR might have multiple attendance records, and the sales team might save different xlsx reports by quarter, region, or customer type. If none of these workbooks have a file-open password, anyone can directly open and view the contents if the files are copied, forwarded, or uploaded to a shared space.

Many users know that Excel itself can set a password for a single file, but when the number of files increases, manually opening each workbook, navigating to settings, entering the password, saving, and closing becomes a classic repetitive task. This article introduces a more suitable approach for batch office processing: using the "Excel Add Password Protection" feature in HeSoft Doc Batch Tool to batch-set open passwords for multiple Excel files. After reading, you will clearly understand its suitable scenarios, the effects after processing, and the steps for each operation.

Applicable Scenarios: When Multiple Excel Workbooks Require Unified Protection

The most common scenario for batch-setting Excel open passwords is when the same batch of files requires identical access rules. For example, a company needs to send a batch of financial analysis reports to management but doesn't want the files to be opened by unrelated personnel during transmission; a project lead needs to package the project plan, timeline, budget details, and resource list for partners, allowing only those who know the password to view them; administrative or HR departments need to archive Excel files with employee information, attendance statistics, and training lists, also needing to prevent the files from being browsed randomly.

The commonality in these needs is: many files, similar formats, and consistent processing rules. Using a batch processing tool allows for importing multiple Excel files at once and setting an open password uniformly, avoiding the time consumption and missed processing issues associated with manual operations.

As seen in the screenshot, HeSoft Doc Batch Tool is a batch processing software designed for office documents, with categories organized by file type and tool category on the left. It is not a simple Excel add-in but is designed around the batch processing needs of office files like Word, Excel, PowerPoint, and PDF, suitable for automating repetitive file operation workflows.

Effect Preview: Direct Viewing Before Processing, Password Verification Required After

Before Processing: Open Immediately Upon Accessing the File

Before processing, an ordinary Excel file can typically be opened directly by double-clicking. As long as the file hasn't set an open password, anyone who can access the file path can view the data in the worksheet. This state is more convenient for sharing general internal materials, but it poses a higher risk for tables containing sensitive information like amounts, clients, personnel, and plans.

After Processing: Excel Pops Up a Password Window

After adding password protection in batch, the Excel password input window will appear when opening the file. As seen in the screenshot, Annual_Budget_Plan.xlsx is already password-protected, and the system requires entering the password to continue. In other words, even if someone gets this xlsx file, they cannot directly view the content without knowing the password.

image-Set an open password for xlsx,encrypt multiple Excel files in batch,and protect Excel workbooks in bulk

This protection method is particularly suitable for scenarios requiring file transfer via email, instant messaging tools, cloud drives, portable hard drives, etc. The file comes with an open password, providing an additional layer of access control even if unexpected contacts occur in the transmission link.

Operation Steps: Batch Add File Open Password to xlsx Files

Step 1: Find the Add Password Protection Feature in Excel Tools

After launching HeSoft Doc Batch Tool , first select "Excel Tools" from the left menu. The right-side function area will display multiple Excel-related batch operations, such as Excel to PDF, Excel to Docx, Excel Add Password Protection, Excel Remove Password Protection, etc.

The current task is to add an open password to Excel files, so click "Excel Add Password Protection." In the screenshot, this feature card is located as the first item on the Excel tools page, and the description text mentions it can batch-add protections like file open passwords and read-only passwords to Excel files.

image-Set an open password for xlsx,encrypt multiple Excel files in batch,and protect Excel workbooks in bulk

The expected result of this step is to enter the dedicated password protection processing page, not a format conversion or image export page. After selecting the correct function, all subsequent settings will revolve around the password protection of the Excel files.

Step 2: Import the Excel Files or Entire Folder to be Processed

After entering the "Excel Add Password Protection" page, you are first in Step 1: "Select records to be processed." The top of the interface provides two main entry points: "Add File" and "Import Files from Folder." If you are only processing a few files, click "Add File" to select them individually; if the files to be encrypted are concentrated in one folder, clicking "Import Files from Folder" is more efficient.

image-Set an open password for xlsx,encrypt multiple Excel files in batch,and protect Excel workbooks in bulk

After import, the software will list the files in a table list. The file names in the screenshot include Annual_Budget_Plan.xlsx, Customer_Feedback_Survey.xlsx, Employee_Attendance_Sheet.xlsx, Financial_Statement_2025.xlsx, etc. The extension column shows xlsx, and the path column shows the file location. This information allows for a quick check to ensure the completeness of the files to be encrypted this time.

If a workbook should not be included in this task, you can use the delete icon in the operation column on the right to remove it. This checking step is very important because once the batch processing is executed, all files in the list will be password-protected according to the same rules. After confirmation, click "Next" at the bottom.

Step 3: Set Processing Options, Enable File Open Password

Upon entering Step 2 "Set Process Options," you can see three switches related to passwords: File Open Password, File Content Read-Only Password, and Restrict Editing Password. To achieve the goal of "preventing others from viewing," you must enable "File Open Password." In the screenshot, this switch is turned on, and the input box below is for entering the password that needs to be verified when opening the file.

image-Set an open password for xlsx,encrypt multiple Excel files in batch,and protect Excel workbooks in bulk

In actual use, it is recommended to set a password for this batch of files that is easy for authorization management but not easy to guess. Avoid using overly simple numbers, birthdays, department names, etc. Although the screenshot shows an example password, when used in a formal office setting, the password should be set according to the enterprise's internal security regulations.

Also, please distinguish the purposes of the three types of passwords. The file open password determines whether someone can enter the Excel workbook; the file content read-only password is usually related to read-only access; the restrict editing password leans more towards controlling modification permissions. This article focuses on view control before opening, so you only need to set the file open password. If you also want to impose additional restrictions on editing actions, you can evaluate other options based on actual needs.

Step 4: Set Save Location and Execute Batch Processing

After setting the password, continue by clicking "Next." The top progress bar shows that the subsequent steps include "Set Save Location" and "Start Processing." When batch processing files, it is recommended to save the processed files in a separate location, making it easy to distinguish them from the original files and convenient for later checking the encryption results.

Once entering the start processing stage, follow the prompts in the software interface to execute. During the process, the software will batch-apply the open password you just set to the Excel files in the list. After completion, it is recommended to spot-check several different files to confirm that the password input window pops up when double-clicking to open them. If every file requires entering a password to open, it means the batch protection has taken effect.

Frequently Asked Questions or Notes

1. Can both xlsx and xls files be processed this way?

From the feature name, it targets adding password protection to Excel files; the example files in the screenshots are mainly in xlsx format. For actual batch tasks, it is recommended to first import the Excel files to be processed into the list and confirm whether the extension is correct based on the software's recognition results.

2. Should the folder be organized before batch encryption?

It is recommended to organize first. Place the Excel files needing encryption into a dedicated folder, and then use "Import Files from Folder," reducing the probability of misselection, omission, and duplicate imports. After the list is generated, perform a secondary confirmation via file names, paths, and extensions.

3. How should the password be communicated to colleagues?

Do not write the password directly in the file name, email subject, or public chat groups. A more prudent approach is to inform authorized personnel through a separate channel, or transmit it according to the company's internal information security specifications.

4. Is only setting an open password sufficient?

If your goal is to prevent unauthorized personnel from viewing the content, an open password is the most direct choice. If you also want to restrict authorized personnel from modifying the table, consider combining settings like read-only or restrict editing. But do not confuse the two: being able to open does not necessarily mean being able to edit, and restricting editing does not completely prevent viewing.

Summary: Uniformly Encrypt Multiple Excel Files for Easier Management of Sensitive Tables

For multiple xlsx workbooks, setting open passwords one by one is both time-consuming and error-prone. Using HeSoft Doc Batch Tool , you can use the "Excel Add Password Protection" feature to import a batch of Excel files into the task list, uniformly enable the file open password, and complete saving and processing by following the wizard.

This method is particularly suitable for positions like finance, HR, sales, and project management before batch distributing sensitive tables. It reduces repetitive work, improves processing consistency, and ensures that every Excel file undergoes password verification before opening. It is recommended to complete batch encryption following this article's process before sending or archiving important Excel data, before proceeding with transmission or sharing.


Keyword:Set an open password for xlsx , encrypt multiple Excel files in batch , and protect Excel workbooks in bulk
Creation Time:2026-07-27 06:52:40

Disclaimer: All images, text, and video content on the website are for reference only and may not be the latest, correct, or accurate. In case of any dispute, please refer to the actual experience effect!

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