If a folder contains a large number of Excel spreadsheets, setting a file open password for each one individually is very inefficient. With HeSoft Doc Batch Tool , you can import multiple Excel files from a folder and then uniformly enable the file open password to achieve batch encryption. This article focuses on the actual process of batch encrypting an Excel folder, explaining applicable scenarios, before and after effects, file import, password setting, save processing, and precautions, helping users quickly protect xlsx, xls, and other office spreadsheets, reducing repetitive operations and lowering the risk of sensitive data being viewed without authorization.
Many office documents are managed in folders. For example, an "Excel" folder might simultaneously store multiple workbooks like annual budgets, customer feedback, employee attendance, product inventory, sales reports, and project plans. Daily viewing and organization are convenient, but if these files need to be packaged for sending, shared with external parties, or stored in a location accessible to multiple people, a problem arises: as long as a file lacks an open password, anyone who gets the file can directly view the spreadsheet content.
If you only need to encrypt one or two Excel files, manual operation is acceptable; but if a folder contains dozens of xlsx files, opening and setting passwords for each one is a huge waste of time. This article introduces how to use the office software HeSoft Doc Batch Tool to import multiple Excel files from a folder at once and batch add file open passwords. After this processing, each spreadsheet will require a password before opening, making it more suitable for scenarios requiring batch protection of office documents.
Applicable Scenario: Excel Data Managed by Folder Needs Batch Encryption
Batch encryption of Excel folders is suitable for situations with many files and consistent protection rules. For instance, the finance department saves budgets, income, expenses, reimbursements, and cost analysis sheets by month; the sales department saves quotations, payment records, customer feedback, and sales reports by customer or region; the HR department saves attendance, performance, training, and employee information sheets by department or time. These files are often scattered within the same folder but are all materials requiring controlled viewing permissions.
In these scenarios, the real time-consumer isn't setting a single password, but repeating the same actions: open file, enter protection settings, input password, save, close, and then open the next file. The value of HeSoft Doc Batch Tool lies in consolidating such repetitive tasks into one batch operation. Users only need to import the folder, set a password once, and execute the process to give multiple Excel files consistent open password protection.
It is important to note that this article discusses the "Open Password." Its primary effect is to prevent unauthorized personnel from opening files and viewing content. For needs like read-only or restricted editing, corresponding options exist in the interface, but if the core requirement is "no viewing without the password," the file open password should be the main focus.
Effect Preview: After Batch Encryption, Opening Excel Requires Password Verification First
Before Processing: Spreadsheets in Folder Can Be Accessed Directly
Before processing, Excel files in the folder are typically standard workbooks. Whether the file name is Financial_Statement_2025.xlsx, Marketing_Strategy_Outline.xlsx, or Product_Inventory_List.xlsx, anyone with access can simply double-click to open it. This is not a major issue for general templates or public data, but poses a leakage risk for spreadsheets containing business, personnel, customer, or budget information.
After Processing: A Password Prompt Appears Before Each Spreadsheet Opens
After batch-adding file open passwords, double-clicking a processed Excel file will cause Excel to pop up a password entry window. In the screenshot, when opening Annual_Budget_Plan.xlsx, the system prompts that the file is password protected and requires a password. Only after entering the correct password can one continue to view the workbook content.

This preview helps you confirm whether the batch encryption has achieved its goal: not simply renaming files, nor moving file locations, but making the Excel files themselves perform password verification upon opening.
Operation Steps: Import from Folder and Batch Add Excel Open Password
Step 1: Open Excel Tools Category, Enter Add Password Protection
First, open HeSoft Doc Batch Tool . The left side of the software is a function category navigation, where you can see entries like "Home," "Task Flow," "All Tools," "File Name," "Folder Name," "File Organization," "Word Tools," and "Excel Tools." Since the processing target is Excel files, click "Excel Tools" on the left.
After entering the Excel Tools page, find the "Excel Add Password Protection" function card on the right side. The screenshot shows this function is located near the top of the page, with descriptive text indicating it batch adds protections like file open passwords and read-only passwords to Excel files. Click this function to enter the batch encryption process.

The purpose of this step is to make the software enter the specific task page for Excel password protection. For users needing to batch encrypt spreadsheets in a folder, choosing the correct function helps avoid entering irrelevant processes like format conversion or image export.
Step 2: Use "Import Files from Folder" to Batch Add Spreadsheets
After entering the function page, you are currently in Step 1: "Select records to process." The top of the interface has two buttons: "Add Files" and "Import Files from Folder." If the files are concentrated in one folder, it is recommended to use "Import Files from Folder," as this is faster than selecting files individually and better aligns with batch processing workflow.

After importing, the software will display the identified Excel files in a list. The screenshot shows multiple files added to the queue, including Annual_Budget_Plan.xlsx, Customer_Feedback_Survey.xlsx, Employee_Attendance_Sheet.xlsx, Financial_Statement_2025.xlsx, Marketing_Strategy_Outline.xlsx, Product_Inventory_List.xlsx, Project_Timeline_Plan.xlsx, Sales_Report_Q1.xlsx, etc.
The list includes not only the file name but also the path, extension, creation time, modification time, and an action column. You can confirm the file source is the target folder via the path, verify file types via the extension, and delete unnecessary files via the action column. After verification, click "Next" at the bottom of the page to proceed to password settings.
Step 3: Enable File Open Password, Set a Unified Access Password
In Step 2: "Set processing options," the interface shows switches related to password protection. The screenshot shows "File Open Password" is enabled, with a password input box below it. This is the key setting for this operation.

If you want others unable to view Excel content without the password, make sure the "File Open Password" switch is on and fill in the intended password in the input box. The numbers in the screenshot are just for demonstration; in actual office use, it is recommended to set a more complex password, such as a combination of numbers, upper- and lower-case letters, and symbols, avoiding easily guessed information like 123456, phone numbers, or birthdays.
The imported batch of files will use the password rule set here, making it more suitable for a group of files with the same permissions. For example, the same project folder, the same department data pack, or the same report package for external sending. If different files need different passwords, they can be processed in multiple batches by folder or permission level.
The interface also shows "File Content Read-Only Password" and "Restrict Editing Password." If the current goal is only to prevent viewing, you can leave these options disabled; if you need to control editing permissions later, configure them according to actual needs. Click "Next" after completion.
Step 4: Set Save Location, Start Batch Processing and Verify Results
According to the top page flow, after setting processing options, you need to proceed to "Set save location," and then "Start processing." The save location setting affects the management of processed files. It's recommended to output the encrypted files to an easily identifiable location, or back up the original files beforehand, ensuring subsequent checking and distribution are clearer.
Entering the start processing phase, execute the batch task as prompted by the software. After processing is complete, do not delete the original files immediately. It is recommended to first randomly open a few processed Excel files for verification. If a password prompt appears upon opening and you can enter the workbook normally after entering the correct password, it indicates the batch addition of open passwords was successful.
Common Problems or Precautions
1. What if there are Excel files in the folder that do not need encryption?
After importing the folder, you can check the file names and paths in the list. If you find a file does not need processing, you can delete it via the action column for that row. Confirming the list before batch processing is very important to avoid accidentally encrypting unrelated files.
2. Is it recommended to use the same password for files with different permissions?
It is not recommended to use the same password for all materials long-term. For files of the same batch and same permission scope, a unified password facilitates management; but Excel files of different departments, projects, or security levels should ideally be processed in batches with different passwords.
3. Will file names change after adding an open password?
From the screenshots, the tool mainly adds password protection to Excel files, and the file list retains original names, paths, and extension information. The specific location and naming of saved files should depend on your selection in the "Set save location" phase. It is recommended to verify by actually opening the files after processing.
4. Why back up before batch processing?
Once password protection is applied, accessing the file later depends on the correct password. To avoid errors in password records, wrong file selection, or other operational mistakes, keeping an original backup of important data before batch encryption is more prudent.
5. Can encrypted files be sent directly to others?
The processed Excel files can be sent, but the password should not be put in the same message or same email as the file. It is recommended to tell authorized personnel through another secure channel, reducing the probability of the file and password being leaked simultaneously.
Summary: Batch Folder Import Makes Excel Encryption More Efficient
When a large number of Excel files in a folder need open passwords added, manual one-by-one processing is not only inefficient but may also miss important spreadsheets. Using HeSoft Doc Batch Tool , you can select "Excel Add Password Protection" in the Excel Tools, use "Import Files from Folder" to add multiple spreadsheets at once, then uniformly enable the file open password and execute batch processing.
This method transforms tedious repetitive operations into a clear four-step process: select function, import files, set password, save and start processing. For finance, HR, sales, operations, and project teams, it can significantly reduce repetitive work while providing more reliable access protection for sensitive Excel data before transfer, archiving, and sharing. It is recommended that after organizing your target folder, you immediately follow this article's process to add open passwords to important Excel spreadsheets.