The web materials collected from different browsers, legacy systems, or client projects often result in a mix of .htm, .mhtml, and .html files. Inconsistent formats can affect archiving, retrieval, delivery, and subsequent system imports. This article uses HeSoft Doc Batch Tool as an example to demonstrate how to use the "HTML to HTML" feature to convert multiple web files into a unified HTML format in one go. It also explains the conversion effects and operational notes with before-and-after screenshots, helping users improve office efficiency through batch processing.
Many people encounter a detail issue when organizing web materials: the files are all web page files, yet some display as htm, some as mhtml, and some as html. When opened individually, they may all be recognized by the browser, but when these files need to be uniformly archived, handed over to colleagues, uploaded to a platform, or imported into a system, inconsistent extensions bring extra checking costs. Especially with a large number of files, manual one-by-one processing is prone to omissions.
The approach introduced in this article is to use HeSoft Doc Batch Tool to batch convert web page files like htm, mhtml, and html into a unified html format. HeSoft Doc Batch Tool is an office software focused on batch file processing, reducing repetitive operations, and improving daily office efficiency. Through its “HTML to HTML” function, the task of unifying web file formats, which originally required repeated manual handling, can be turned into a batch-executable process.
Applicable Scenarios: Why Unify Web Files into HTML Format
In practical office work, the sources of web files are very complex. Content operators might save web pages from browsers, trainers might download web tutorials, project assistants might organize page files provided by clients, and technical or testing personnel might export system pages. The extensions of web files generated from different sources are not necessarily the same; some are .htm, some are .mhtml, and some are .html. Although they are all related to web content, they are not uniform at the management level.
Unifying web files into HTML format has several main benefits. First, the file list is clearer, and a unified extension is easier to identify and filter. Second, delivery standards become more consistent, reducing communication costs during team collaboration. Third, during subsequent system imports, web material processing, and knowledge base maintenance, a uniform format more easily meets rule requirements. Finally, when archiving files for long-term preservation, unified naming and formatting facilitate future retrieval.
If there are only one or two files, manual processing won’t take much time. But if there are dozens of web files, or even a large accumulation of htm and mhtml files accumulated by project, batch conversion should be considered. The significance of batch processing is not just speed, but also includes process stability, unified results, and ease of review.
Effect Preview: From Mixed Extensions to Unified HTML
In the folder before processing, 4 web page files can be seen: 1.mhtml, 2.htm, 3.htm, 4.html. Their icons can all be recognized by the browser, but the extensions are inconsistent. For office materials that need unified archiving, this state is not ideal, because subsequent filtering, uploading, or verification may require additional judgment.

After batch conversion is complete, all files are unified into the HTML format, becoming 1.html, 2.html, 3.html, and 4.html respectively. The processed directory is neater, and the file extensions also better conform to common web file archiving habits. For scenarios requiring batch delivery of web materials, this unified result is very intuitive.

From the before-and-after comparison, it can be seen that the core value of software processing lies in batch format unification, rather than making users perform multiple small operations repeatedly. The more files there are, the more obvious this efficiency improvement becomes.
Operation Steps: Batch Convert Web Materials to HTML
Based on the interface information in the screenshots, the following explains how to complete the operation in HeSoft Doc Batch Tool . The entire process can be summarized as: select function, import files, confirm list, set save location, and start processing.
Step 1: Find HTML to HTML in Text Tools
After opening the software, you can see the function category navigation on the left, including Home, Task Flow, All Tools, File Name, Folder Name, File Organization, Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, etc. Since the files being processed this time are web text-type files, you need to enter "Text Tools".
In the function list of Text Tools, you can see multiple conversion tools, including "HTML to TXT," "HTML to Word," "HTML to PDF," "HTML to Markdown," etc. Be careful not to select the wrong target format here; this time the goal is to unify web files into html, so "HTML to HTML" should be selected. In the screenshot, this function card is selected, and it indicates it is used for batch converting HTML files to the HTML file format.

The purpose of this step is to determine the type of processing task. After selecting "HTML to HTML," the software will enter the corresponding batch processing page, preparing for the subsequent import of htm, mhtml, and html files.
Step 2: Add Files or Import Files from Folder
After entering the function page, the top displays the current task as "HTML to HTML". Above the page are buttons like "Add Files," "Import Files from Folder," "Clear," and "More." For a small number of scattered files, you can click "Add Files" to select them individually; for web materials already concentrated in the same directory, it is more recommended to use "Import Files from Folder," as this reduces repetitive selection operations.
The example task list in the screenshot has already imported 4 records, sourced from D:\test\1.mhtml, D:\test\2.htm, D:\test\3.htm, and D:\test\4.html. The list also displays information like extension, creation time, and modification time, making it convenient for users to confirm the files are correct before processing.

The expected result of this step is that all files to be processed are added to the list, and the bottom summary shows the correct number of records. The screenshot shows the record count is 4, indicating that this task will process 4 web page files.
Step 3: Check Records to Avoid Processing Files by Mistake
The most important thing to pay attention to in batch processing is the file scope. After importing, it is recommended to review the list first to confirm that the names, paths, and extensions conform to the current task. The extension column in the screenshot clearly shows mhtml, htm, htm, html, which are exactly the file types that need to be unified into html.
If you find that a certain file does not need to be converted, you can use the delete entry in the corresponding row's operation column to remove it. If there are many files, you can use the "Filter" and "Sort" entries displayed on the interface to assist in the check. After confirming everything is correct, click "Next" at the bottom of the page to enter the save location setting stage.
The operational purpose of this step is to complete a review before formal batch processing starts. Compared to manual processing, a batch tool processes multiple records at once, so a pre-check is very important. As long as the list is confirmed to be accurate, the subsequent conversion will be smoother.
Step 4: Set Save Location and Execute Conversion
The interface flow shows the second stage as "Set Save Location" and the third stage as "Start Processing." After entering the save location settings, it is recommended to choose an output directory clearly separate from the original files. This avoids confusing the original files with the converted html files and also makes it convenient to compare the effects after processing is complete.
After setting the save location, proceed to the start processing stage. The software will execute the conversion in batch according to the list records, uniformly outputting htm, mhtml, and the original html files into the html format. Once processing is finished, you can view the converted results in the output directory.
In the example, the original 1.mhtml, 2.htm, 3.htm, and 4.html are finally unified into 1.html, 2.html, 3.html, and 4.html. For tasks requiring standardized web materials, this result is clear and easy to verify.
Common Questions and Considerations
1. What is the difference between htm and html? In many scenarios, both htm and html represent web page files, only differing in extension length. However, in file archiving, system imports, or team standards, uniformly using html is often more intuitive and easier to manage.
2. Which files are suitable for mhtml to html conversion? mhtml is typically a format for saving web pages and may contain page-related content. If you need to incorporate it into a unified html file management process, you can handle it through the batch conversion function. After processing, it is recommended to spot-check the result files by opening them to ensure the page content meets expectations.
3. Can many files be imported at once? From the screenshot, it can be seen that the software supports adding multiple files to the list via "Add Files" and "Import Files from Folder." When the file count is large, it is recommended to prioritize folder import and check the record count and extensions before starting processing.
4. Is it necessary to delete the original files first? It is not recommended to delete the original files before processing. A safer approach is to save the conversion results to a new directory, and after confirming they are correct, decide whether to archive, move, or clean up the original files.
5. Why check the save location? After batch conversion, multiple html files will be generated. If the save location is unclear, you might not find the results later, or they might be mixed up with the original files, making them difficult to distinguish. A standardized output directory can improve overall file management efficiency.
Summary: Turning Web Material Organization from Manual Format Changes into a Batch Process
When a folder contains web page files like htm, mhtml, and html simultaneously, the most effective processing method is not to open and save-as one by one, but to use a batch processing tool for unified conversion. HeSoft Doc Batch Tool , through its "HTML to HTML" function, integrates selecting the function, importing files, setting the save location, and starting processing into a clear workflow, suitable for office scenarios like web material archiving, project file delivery, knowledge base organization, and system migration.
If you are organizing a batch of web page files, you can first put them into the same folder, then use "Import Files from Folder" to add them in batch, and then follow the process to convert them to html. This not only saves time but also reduces the risk of missed processing and non-uniform formatting, making file organization work more standardized and efficient.