When a company needs to simultaneously protect a large number of Excel files such as budget sheets, customer feedback forms, attendance sheets, and financial statements, opening each file individually to set a password is very time-consuming and prone to omissions. This article introduces how to use the Excel add password protection feature in HeSoft Doc Batch Tool to import multiple table files such as xlsx and xls at once, uniformly set file open passwords, so that the processed Excel files require a password to open, thereby reducing the risk of sensitive data being viewed casually.
In daily office work, Excel spreadsheets often carry sensitive information such as budgets, quotes, customer lists, employee attendance, sales statistics, and inventory details. If these files are simply saved normally, anyone who gets hold of them can directly open and view the contents. For just one or two spreadsheets, manually setting an open password in Excel might be acceptable; however, if a folder contains dozens or even hundreds of xlsx, xls, or xlsm files, needing to open each one individually, save a copy, set a password, and confirm it is not only time-consuming but also highly prone to omissions due to repetitive operations.
The problem this article aims to solve is clear: how to batch-add file open passwords to many Excel files to prevent others from directly viewing the spreadsheet contents. Below, by incorporating screenshots, we will introduce the complete workflow for batch processing using office software like HeSoft Doc Batch Tool . Its core value lies in consolidating the otherwise repetitive Excel encryption steps into a single workflow, making it suitable for administrative, HR, finance, sales, project management, and other office scenarios where batch file protection is needed.
Applicable Scenarios: Which Excel files are suitable for batch adding open passwords
Batch adding open passwords to Excel files is mainly suitable for scenarios with a large number of files, sensitive content, and a need for unified protection rules. For example, the finance department generates multiple budget sheets, expense reimbursement details, and profit projection sheets every month; the HR department needs to save employee attendance, compensation, and performance statistics; the sales team organizes customer follow-up records, quotation sheets, and contract ledgers; project teams may accumulate a large number of Excel files like progress plans, resource lists, and acceptance records.
If these spreadsheets need to be transmitted via email, cloud storage, instant messaging tools, or stored in shared folders, setting an open password for the files adds an access barrier. After processing, a password input window will pop up when the file is opened, and only those who know the password can continue to view the contents. For Excel workbooks like xlsx, xls, and xlsm, this method is more intuitive and aligns better with the practical usage habits of many office workers than simply renaming files or compressing folders.
It is important to note that this article focuses on the "file open password," which is the password required before opening an Excel file. The tool in the screenshots also displays options like "file content read-only password" and "restrict editing password," but this article, centered on the need to prevent others from viewing file content, mainly demonstrates the method for setting the open password.
Effect Preview: The difference before and after processing
Before processing: Ordinary Excel files can usually be opened directly by double-clicking. As long as someone has access to the file itself, they can enter the spreadsheet to view worksheet contents, copy data, or continue editing. For Excel files containing budgets, customer data, or internal plans, this state poses a certain risk of information leakage.
After processing: After batch adding a file open password, when trying to open an Excel file again, Excel will prompt that the file is password protected and require a password to be entered. Only after entering the correct password can one access the workbook to view its contents. In the effect image below, when opening Annual_Budget_Plan.xlsx, the "Password Protected" prompt window has already appeared, indicating that the file open password is active.
This effect is very practical for batch file management. Whether it's budget planning sheets, customer feedback survey sheets, employee attendance sheets, or sales reports, as long as they are all added to the batch processing list and set with the same open password, the encryption process can be completed uniformly, avoiding repetitive settings for each file.
Operation Steps: Batch setting file open passwords for Excel files
Step 1: Enter the Excel tool and select "Add Password Protection to Excel"
After opening HeSoft Doc Batch Tool , you can find "Excel Tools" in the tool categories on the left. In the Excel tools list, select "Add Password Protection to Excel." As shown in the screenshot, the function description is for batch adding protection like file open passwords and read-only passwords to Excel, which perfectly matches the need for batch Excel encryption and batch setting of xlsx open passwords.
The purpose of this step is to first enter the correct functional module. Batch tools in office software are usually categorized by file type and processing task, such as Word tools, PDF tools, Image tools, Excel tools, etc. After selecting "Add Password Protection to Excel," the subsequently imported files will be processed according to the Excel encryption logic, rather than performing format conversions, image exports, or other tasks.
Step 2: Add the Excel files to be encrypted
After entering the function page, the interface displays a step-by-step processing flow. The first step is "Select records to process." The top of the page provides two entry points: "Add File" and "Import Files from Folder." For a small number of files, you can click "Add File" to select them individually; if you need to process multiple Excel spreadsheets from an entire folder, it is more suitable to use "Import Files from Folder" to import the files from the target directory into the list at once.
In the screenshot, multiple Excel files have already been imported, including Annual_Budget_Plan.xlsx, Customer_Feedback_Survey.xlsx, Employee_Attendance_Sheet.xlsx, Financial_Statement_2025.xlsx, Marketing_Strategy_Outline.xlsx, and more. The list displays information like file name, path, extension, creation date, and modification date. This information helps confirm whether the imported files are correct, especially when batch processing files with the same or similar names, allowing verification via path and extension.
If a specific file does not need encryption, you can use the delete operation on the right side of the list to remove it from the processing scope. The advantage of this is that the task list can be organized before batch processing begins, preventing spreadsheets that don't need a password from being processed as well.
Step 3: Set the file open password
After confirming the file list is correct, click "Next" at the bottom of the interface to enter "Set processing options." On this page, you can see multiple password-related options, including "File Open Password," "File Content Read-Only Password," and "Restrict Editing Password." To achieve the goal of "others cannot directly open and view Excel content," you should enable "File Open Password" and enter the uniform password to be used in the field below.
In the screenshot, the "File Open Password" switch is enabled, and a sample password is filled in the input box. This password will be applied to the previously imported Excel files. After processing, when users double-click to open these files, they will first need to enter this password. It is recommended to use a password that is easy for authorized personnel to remember but not easily guessed; avoid using overly simple number combinations, name pinyin, or birthdays.
If your goal is just to prevent outsiders from viewing the spreadsheet content, setting the "File Open Password" is usually sufficient. As for "File Content Read-Only Password" and "Restrict Editing Password," they are more oriented towards controlling editing permissions after opening. The scenario emphasized in this article is preventing others from viewing the file, so do not confuse different password types to avoid results inconsistent with expectations.
Step 4: Set the save location and start batch processing
After completing the password setting, continue by clicking "Next." Following the interface workflow, the subsequent steps will be "Set Save Location" and "Start Processing." The purpose of the save location is to determine where the processed Excel files will be output. To avoid overwriting the original files, it is recommended to save the encrypted files to a new folder, such as "Encrypted Excel" or "Open-Password Spreadsheets." This way, even if you need to check the original files later, the unprocessed versions are retained.
After setting the save location, enter the final "Start Processing" step. Confirm the file count, password options, and save path are correct before executing the batch processing. The tool will add the open password to the Excel files one by one according to the previously imported file list. Compared to manual processing, this method does not require the user to repeatedly open each workbook, nor to enter the save options in Excel one by one to set a password, making it suitable for centralized processing of a large number of files.
Frequently Asked Questions and Precautions
1. After batch adding passwords, can the original files still be opened directly?
This depends on the save location and processing method. For safety, it is recommended to output the processed files to a new folder, keeping the original files unchanged. This allows you to obtain the password-protected Excel files while retaining a backup before confirming the results, reducing the risk of operational errors.
2. Can xlsx, xls, and xlsm files all be processed together?
The file extensions shown in the screenshot are xlsx, and the function name is Add Password Protection to Excel. Common Excel files, such as xlsx and xls, typically fall within the scope of Excel file processing. During actual batch importing, you can first check the file types via the "Extension" column in the list to confirm they are all Excel spreadsheets that need processing.
3. What if I forget the set file open password?
The file open password is used to protect content access. If the password is forgotten, opening the file later will be very troublesome. Therefore, before batch processing, a responsible person should record the password and save it in a secure manner. Do not write the password directly in file names, shared folder descriptions, or public chat records.
4. Is it necessary to set a read-only password or restrict editing password at the same time?
If the goal is to prevent others from viewing the file content, the focus is the "File Open Password." If the file needs to be opened for viewing but should not be arbitrarily modified, then consider read-only or editing restriction settings. Different passwords serve different purposes, so clarify the permission strategy before batch processing.
5. Why check the file list before batch processing?
Batch processing is highly efficient, but it also means affecting multiple files at once. Checking file names, paths, and extensions before starting the process can avoid accidentally encrypting irrelevant files and reduce the chance of omitting important spreadsheets. Confirmation before processing is particularly crucial for sensitive data like financial statements, customer lists, and personnel forms.
Summary: Using batch processing to improve Excel encryption efficiency
When you need to add open passwords to a large number of Excel files, manually setting them one by one is not only time-consuming but also prone to omissions. Using the "Add Password Protection to Excel" function in HeSoft Doc Batch Tool , you can first batch import xlsx and other spreadsheet files, then uniformly enable "File Open Password," set a save location, and process them centrally. After processing, Excel files will require a password when opened, effectively reducing the risk of unauthorized viewing.
If you are organizing budget sheets, customer data, attendance sheets, sales reports, or project plans and want to quickly complete batch Excel encryption, it is recommended to first gather the files to be processed into the same folder, back up the original files, and then follow the steps in this article. This not only enhances office efficiency but also makes access control for sensitive spreadsheets more standardized.