This article is aimed at office users who need to batch-organize Excel spreadsheets, explaining how to uniformly convert multiple XLSX files in a folder to XLSB format. Using the Excel to XLSB Conversion feature of HeSoft Doc Batch Tool , you can add files or import files from a folder, check the file list, set the save location, and start processing. The article includes applicable scenarios, before-and-after effects, a step-by-step tutorial, and operational precautions to help users efficiently standardize spreadsheet formats.
Having a large number of Excel spreadsheets piled up in folders is a common occurrence in many office scenarios. For instance, files such as product lists, attendee rosters, test data sheets, department statistics, etc., might all be saved in xlsx format. When there is a subsequent need to uniformly convert them to the XLSB format, manually opening, 'Saving As', and closing each one not only is inefficient but also causes simple tasks to consume a significant amount of work time.
This article solves a specific problem: How to batch convert multiple Excel spreadsheets from a folder to the XLSB format while preserving the original file names as much as possible. Using actual screenshots, we will explain how to find the "Excel to Xlsb" function in HeSoft Doc Batch Tool , how to import files for conversion, and how to complete the process through a step-by-step workflow.
HeSoft Doc Batch Tool is an office software designed precisely for these types of high-frequency, repetitive, and high-volume file processing tasks. It turns common document conversion and collation operations into batch workflows, freeing users from the need to constantly switch between Excel, File Explorer, and the 'Save As' window, thereby enhancing office efficiency.
Applicable Scenarios: Why Batch Convert Excel Files in a Folder to XLSB
1. Large number of spreadsheets in the folder. Manually converting is not troublesome if there's only 1 file; but if a folder contains 30, 100, or even more Excel files, manual processing becomes inefficient, repetitive labor. Batch conversion allows multiple files to be placed in a single queue for one-time processing.
2. Need to unify file extensions. In team collaboration, a unified format aids subsequent archiving, retrieval, and delivery. After uniformly converting xlsx files to xlsb, the file extensions are consistent, making management clearer.
3. File names carry business meaning and cannot be arbitrarily modified. Many Excel file names contain product, personnel, project, or date information. When converting formats, the main body of the original file name should be preserved as much as possible, changing only the extension. The conversion of product_list.xlsx to product_list.xlsb, as shown in the screenshot, is a typical result.
4. Desire to reduce manual operational errors. When manually converting multiple files, it's easy to save to the wrong folder, miss a file, overwrite files that should not be overwritten, etc. Using a batch processing tool allows for a unified check of the list before processing, reducing rework.
Effect Preview: From Excel Icon Files to XLSB Format Files
Before processing, there are multiple Excel spreadsheet files in the folder. The screenshot shows 3 sample files: product_list.xlsx, team-participant-list.xlsx, test.xlsx. These files all have the .xlsx extension, belonging to the common Excel workbook format.

After processing, the files have become .xlsb format. You can see the converted file names are product_list.xlsb, team-participant-list.xlsb, and test.xlsb, respectively. The main body of the file names remains unchanged, while the extensions have uniformly become XLSB. This is exactly the ideal state for batch format conversion in office archiving.

By comparison, it can be seen that batch conversion is not simply renaming the file suffix, but rather executing a format conversion process through office software. The user ultimately obtains files in the target format, suitable for subsequent saving, archiving, or delivery.
Operating Steps: Batch Convert Excel Files in a Folder to XLSB
The operation is detailed below following the sequence of the screenshots. For ease of understanding, the example uses 3 xlsx files, but in practice, you can add more files as needed.
Step 1: Open the Software and Enter Excel Tools
After launching HeSoft Doc Batch Tool , you can see the left navigation bar contains multiple tool categories. The functions related to Excel spreadsheet processing are located in Excel Tools, so the first step is to enter this category.
Upon entering, the right functional area displays various Excel conversion functions. The screenshot shows cards like "Excel to JPG Image", "Excel to Word", "Excel to PDF", "Excel to Csv", "Excel to Xlsx", "Excel to Xlsm", etc. Different cards correspond to different output formats.

The target format this time is XLSB, so select "Excel to Xlsb" on the right. The red arrow in the screenshot has already marked the location of this function. After clicking to enter, you can start establishing the batch conversion task.
Step 2: Select the Adding Method and Import the Spreadsheets to be Converted
After entering the "Excel to Xlsb" page, the current function name is displayed at the top. The page process is divided into 3 steps: Select records to process, Set save location, Start processing. Currently in step 1, you need to first add the files to be converted into the list.
The top right of the interface provides two import-related buttons: Add File and Import Files from Folder. If converting only a few specific files, you can click "Add File"; if processing all spreadsheets in a folder, using "Import Files from Folder" is more suitable for the folder batch conversion scenario.

The red arrow in the screenshot points to the "Add File" button, indicating that you can select Excel files through this entry point. After importing, the files will appear in the list below, forming the records to be processed.
Step 3: View the Pending List and Confirm File Information
After importing files, the list displays detailed information for each file. The table columns in the screenshot include Sequence Number, Name, Path, Extension, Creation Time, Modification Time, and Operation. In the example, a total of 3 files are imported: product_list.xlsx, team-participant-list.xlsx, and test.xlsx.
Here it is recommended to check three types of information carefully:
Name: Confirm whether the file is the Excel spreadsheet to be converted this time.
Path: Confirm that the file comes from the correct folder to avoid selecting a file with the same name from the wrong location.
Extension: Confirm the current file format. In the screenshot, the extensions are all xlsx, indicating these files will be converted from xlsx to xlsb.
The bottom of the list shows "Number of records: 3", which helps users quickly check the total count. If you plan to convert all Excel files in a specific folder, the record count should match the expected quantity.
Step 4: Remove Unnecessary Records or Re-import
Before batch conversion, if you find a file that should not be processed, you can use the delete icon in the operation column to remove it from the list. If the entire batch of files was selected incorrectly, you can also use the Clear button at the top to empty the list and then re-add files.
When the number of files is large, the Filter and Sort buttons in the interface can also help users inspect the list. For example, you can view similar files by name, or confirm file sources based on path. Although these actions seem like just preparatory work, they are very important for batch processing because once processing starts, every file in the queue will be converted.
Step 5: Click Next Step to Set the Save Location for Converted Files
After confirming the file list is correct, click the Next Step button at the bottom. According to the process flow at the top of the interface, the next stage is "Set save location". The purpose of this step is to determine where the converted XLSB files will be output to.
It is recommended not to save the output files arbitrarily to a temporary directory. A more rational approach is to establish a clear output folder, for example, named by project, date, or conversion format. This way, after processing is complete, you can directly open this folder to check all .xlsb files, and also avoid confusion with the original .xlsx files.
For important data, it is recommended to keep the original xlsx files in the source folder and output the xlsb files to a new folder. This ensures that even if re-conversion is found to be necessary later, you can reprocess from the original files.
Step 6: Start Processing and Verify Conversion Results
After setting the save location, proceed to step 3 of the process, "Start processing". The software will execute the conversion according to the records in the list, batch converting the Excel files to the XLSB format.
After processing is complete, open the output location to check the results. The expected effect should match the post-processing screenshot: the original product_list.xlsx, team-participant-list.xlsx, test.xlsx have become product_list.xlsb, team-participant-list.xlsb, test.xlsb after conversion. When checking, focus on two points: first, whether the number of files matches the record count; second, whether the extension is .xlsb.
Common Questions and Notes
1. Can I just directly change the file suffix to .xlsb?
It is not recommended to do this. File format conversion should be performed through software, not by simply changing the suffix. Simply changing the extension may cause the file to fail to open normally or result in an incorrect format. The method introduced in this article completes the conversion using the "Excel to Xlsb" function.
2. Do I need to close the Excel files before batch conversion?
To reduce processing issues caused by file locking, it is recommended to close the relevant Excel files being edited before conversion and ensure the files are not occupied by other programs. This makes the batch processing flow more smoothly.
3. How can I confirm that no files were missed?
After importing, check the record count at the bottom of the list and compare it with the number of files planned for processing in the folder. Also, check the Name and Path columns to confirm that all key spreadsheets have been added to the queue.
4. What is the difference between 'Add File' and 'Import Files from Folder'?
As can be seen from the button names in the interface, "Add File" is more suitable for selecting specific files, while "Import Files from Folder" is better for processing files within a folder. You can choose based on the actual distribution of your files.
5. How to manage the original files and new files after conversion is complete?
It is recommended to save the original xlsx files and the converted xlsb files separately. The original files serve for backup and traceability, and the new files for archiving or delivery. This maintains data safety and keeps the output results clearer.
Summary: Batch Convert Folder to XLSB for More Efficient Spreadsheet Collation
Batch converting Excel spreadsheets in a folder to XLSB is a typical office batch processing requirement. Although manual conversion is simple, it consumes a lot of time when the number of files is large and increases the risk of missed processing and incorrect saving.
Using HeSoft Doc Batch Tool , you can utilize the "Excel to Xlsb" function within the Excel Tools to add multiple xlsx files to the processing list. After checking the name, path, and extension, set the save location and start processing. Once processing is complete, users obtain .xlsb files with the same names, achieving spreadsheet format uniformity.
If you need to organize a batch of Excel files, it is recommended to prioritize the batch processing method. First plan the source folder and the output folder, then follow the steps in this article to complete the XLSB conversion task more quickly, freeing up time from repetitive clicking for more valuable data collation and business analysis.