The difficulty of batch Excel-to-CSV conversion lies not in converting a single file, but in how to stably process a large number of tables and ensure the results can be verified. This article focuses on the Excel-to-CSV conversion feature of HeSoft Doc Batch Tool , and introduces the complete workflow from choosing the tool entry, batch-adding files, importing XLSX files from folders, verifying the task list, setting the save location, to checking the CSV output results. It is suitable for office scenarios such as business data import, report format unification, system migration, and automated data processing.
Many people, when first encountering the need to convert Excel to CSV, directly use the "Save As" function in Excel software. However, in real office environments, the requirement is often not to convert a single file, but to convert many Excel files within a folder. For example, a batch of sales reports, a collection of customer data, a set of project task lists, or a batch of order records all need to be converted from xlsx or xls format to csv format. If you still use the manual method of opening and saving each file individually, it is not only inefficient but may also lead to missing files, saving to the wrong directory, or overwriting the correct version due to fatigue from repetitive operations.
This article is a guide for batch converting Excel files to CSV, oriented towards real-world office scenarios. We will use the HeSoft Doc Batch Tool shown in the screenshots for demonstration. It is a batch processing tool in an office software suite, emphasizing centralized processing of documents and spreadsheet files to help users reduce repetitive work. Through this article, you can understand what scenarios this task is suitable for, the effect before and after conversion, and the complete workflow from file import to verifying output results according to the software interface.
Applicable Scenarios: Why Batch Convert Excel to CSV
The CSV format is widely used for data exchange. Compared to xlsx workbooks, CSV is more lightweight and has a simpler structure. Many business systems, database tools, data analysis platforms, and automation scripts can read it directly. Therefore, when Excel tables need to be used by other systems, they often need to be converted to CSV first.
In enterprises, this type of task is very common. For example, the sales team converts Sales Data.xlsx to Sales Data.csv for uploading to a statistics system; the project team converts Project Tasks.xlsx to CSV for importing into a collaboration platform; procurement or operations staff convert Product List.xlsx and Order Records.xlsx to csv for easy batch import by the system; the HR department converts Employee Salaries.xlsx to CSV for internal data circulation; and the customer service team converts Feedback Survey.xlsx to CSV for summary analysis.
If you convert manually every time, the more files there are, the more uncontrollable the time consumed becomes. The significance of batch conversion lies in handing fixed rules over to the software for execution: all selected Excel files are uniformly converted to CSV format, the conversion results are centrally output, and the user only needs to check the input files before starting and the output results after completion.
Effect Preview: File Format Comparison Before and After Processing
Let's first look at the state before processing. The screenshot shows multiple Excel files; both the icons and extensions indicate these files are in .xlsx format. The file names include Sales Data.xlsx, Project Tasks.xlsx, Product List.xlsx, Order Records.xlsx, Meeting Notes.xlsx, Feedback Survey.xlsx, Employee Salaries.xlsx, and Customer Information.xlsx. These files may come from different business segments like sales, projects, products, orders, HR, and customer management.

The core issue before processing is that the file format is not yet CSV. If the target system only accepts .csv files, format conversion must be completed first. Manually processing these 8 files already requires repeating the process many times; if the number of files is larger, the efficiency problem becomes more pronounced.
After processing, the file extensions are uniformly changed to .csv. You can see result files like Sales Data.csv, Project Tasks.csv, Product List.csv, Order Records.csv, Meeting Notes.csv, Feedback Survey.csv, Employee Salaries.csv, and Customer Information.csv. The main body of the file name remains consistent with the original Excel file, with only the extension changed, making result verification very intuitive.

This is the ideal outcome of a batch Excel-to-CSV task: the original Excel files are kept as data sources, and the converted CSV files serve as standard files for subsequent importing, uploading, or analysis.
Operation Steps: From Selecting Function to Completing Batch Conversion
Step 1: Select Convert to Csv in the Excel Tools
After opening HeSoft Doc Batch Tool , first go to "Excel Tools" in the left navigation bar. The product name displayed in the upper left corner of the software indicates that HeSoft Doc Batch Tool is currently being used. The categories on the left are for quickly locating processing capabilities for different file types. This task involves Excel spreadsheet processing, so do not select Word Tools, PDF Tools, or Image Tools.
After entering the Excel Tools page, you can see multiple Excel-related function cards. The screenshot specifically highlights "8. Excel to Csv," whose description reads "Batch convert Excel files to Csv format." This is exactly the function we will use in this article. Click this card, and the software will enter the dedicated conversion page.

The expected result of this step is to enter the "Excel to Csv" task interface. If you see other format conversion titles on the page, such as Excel to PDF or Excel to Image, it means you selected the wrong function and need to go back and re-select.
Step 2: Import Excel Files to Process by Adding Files or Folders
After entering the "Excel to Csv" page, two key entry points are provided at the top: "Add File" and "Import Files from Folder." These two buttons correspond to two common working methods. The first is when files are scattered in different locations; you can click "Add File" to add the Excel files needing conversion in batches. The second is when the files are already organized in the same directory; clicking "Import Files from Folder" is more efficient, as it can directly add the Excel files within that folder to the task.
The red boxes in the screenshot mark these two buttons, indicating they are the operational focus of this step. For batch file processing, it is recommended to first gather the xlsx and xls files needing conversion into a dedicated folder, and then use "Import Files from Folder." This reduces the chance of missing files and facilitates later management of source files and result files by folder.

After importing, a task list will be generated at the bottom of the interface. The list in the screenshot displays 8 records, each with information like name, path, extension, creation time, and modification time. Do not rush to the next step; first, confirm that the imported files fully match the scope of this task.
Step 3: Check the Task List to Ensure Accurate Batch Conversion Scope
The most crucial aspect of batch processing is accurate input. The "Name" column in the list helps you verify specific files, such as Customer Information.xlsx, Employee Salaries.xlsx, Feedback Survey.xlsx, Meeting Notes.xlsx, Order Records.xlsx, Product List.xlsx, Project Tasks.xlsx, and Sales Data.xlsx; the "Path" column shows the directory where the file is located; the "Extension" column shows xlsx, indicating these are Excel files; the bottom summary shows the record count is 8, making it easy to compare with the expected number in the folder.
If you find irrelevant files have been imported, you can use the delete icon in the operation column on the right to remove them. If the overall import scope is incorrect, you can use the "Clear" button at the top to clear the list and re-select. This checking step may seem simple, but it can avoid rework caused by discovering wrong files only after the batch conversion is done.
For formal business data, it is recommended to confirm before conversion that the files are not versions currently being edited by someone else, and not to mix temporary test files into the formal task. File names are best kept clear and identifiable, such as Customer Information, Order Records, Product List, etc., to quickly correspond to CSV results after conversion.
Step 4: Click Next and Set the Save Location for Conversion Results
After confirming the task list is correct, click "Next" at the bottom. The interface flow bar shows the current task is divided into three phases: Step 1 "Select records to process", Step 2 "Set save location", and Step 3 "Start processing". Therefore, the next step will enter the save location setting stage.
The save location should be determined based on your workflow. If the converted CSVs need to be uploaded directly to a platform, you can save them to that project's dedicated import folder; if a review is needed first, save to a directory like "CSV to Check"; if you need to keep a processing trail, you can create a folder by date. Regardless of the method chosen, the core principle is to clearly separate the source Excel files from the output CSVs to avoid results being scattered in different locations.
Although the screenshot doesn't show the specific controls on the save location page, judging from the software flow, setting the save location is a necessary step before starting processing. After completing the setting, proceed to the start processing phase.
Step 5: Start Processing and Verify CSV Output Results
After entering Step 3 "Start processing," execute the batch conversion according to the interface prompts. The software will process the Excel files one by one from the task list, converting them to CSV format. Upon completion, open the output directory to view the result files, focusing on checking the file count, file names, and extensions.
The ideal result is: for every Excel file in the input list, you can find a corresponding number of CSV files in the output directory; the main body of the file name is consistent with the source file; the extension is .csv. For instance, Sales Data.xlsx corresponds to Sales Data.csv, and Order Records.xlsx corresponds to Order Records.csv. If necessary, spot-check a few CSV files to confirm the content opens normally and that the Chinese characters, dates, and column structure meet the import requirements of the subsequent system.
Common Questions and Considerations
1. Does batch Excel to CSV conversion preserve all formatting from Excel?
CSV primarily stores table data and is not suitable for preserving complex information like styles, colors, formula display effects, and multiple worksheet structures in Excel. Therefore, converting to CSV is typically used for data exchange, not for retaining complete Excel formatting. It is recommended to keep the original xlsx or xls file as a backup.
2. Why preview the effects before and after processing?
Previewing the before and after effects helps users clarify the task objective: before processing, there is a batch of Excel files; after processing, there is a batch of CSV files with the same names. For batch tasks, a clearer objective makes it easier to judge if the operation was successful and also easier to explain to colleagues where the output files are and how to use them.
3. Can I import many files directly from a folder?
The screenshots provide the "Import Files from Folder" button, which is suitable for adding Excel files from the same directory to the task in batch. Before use, it is recommended to clean up the folder beforehand, keeping only the spreadsheets needed for this conversion to avoid importing irrelevant files.
4. What else needs to be checked before CSV files are used for system import?
Different systems may have different requirements for CSV. After conversion, it is recommended to at least check the header fields, column order, date format, number format, and Chinese character display. If it's the first time interfacing with a system, you can convert a small number of files for testing first, then batch process all the data.
Summary: Use Standard Workflows for Stable Conversion of Large Volumes of Excel to CSV
The key to batch converting Excel files to CSV is to break down the task into a clear process: first confirm the processing scenario and target format, then in HeSoft Doc Batch Tool , enter Excel Tools, select "Excel to Csv," build a task list by adding files or importing from a folder, check the names, paths, and extensions before setting the save location, and finally start processing and check the output results.
Compared to opening Excel and using "Save As" one by one, this method is much more suitable for processing a large number of files. It reduces repetitive clicks, lowers the risk of missed conversions, standardizes file formats, and makes output results easier to manage. If you frequently handle tasks like converting xlsx to csv, xls to csv, or batch importing multiple Excel spreadsheets into a system, it is recommended to adopt this workflow as a standard office method, as it can significantly improve daily data processing efficiency.