Batch Replace Numbers in Word Document File Names Tutorial: Fuzzy Regex Search to Change to a Unified Year with One Click


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After office documents are exported or collected, file names often contain different numbers, for example, random four-digit numbers appear at the end of course, review, or plan docx files. This article introduces how to use HeSoft Doc Batch Tool in the file name function to select find and replace keywords, use formula fuzzy search rules to match four-digit numbers, and uniformly replace them with -2026, thereby quickly completing batch standardization of Word document file names.

In daily office work, file names may seem like a minor detail, but they directly affect the efficiency of file searching, archiving, and collaboration. Especially for files such as Word documents, docx data packages, study notes, contract templates, and project plans, if their names contain irregular numeric serial numbers, it makes the folder appear cluttered. For example, if a batch of documents is named EnglishVocabulary2468.docx, ExamReview5820.docx, LearningGoals3091.docx, MathNotes1357.docx, and StudyPlan2024.docx, the main part of the name is meaningful, but the inconsistent digits at the end make it difficult to determine what these numbers represent during later retrieval.

If you want to unify these different numbers into the same year or identifier, for example, changing all four-digit numbers to -2026, the traditional approach is to rename files one by one. However, when the number of files increases to dozens or even hundreds, manual operation consumes a lot of time and can lead to problems like missed changes, incorrect changes, or duplicate naming. A more efficient way is to use office software that supports batch file processing, utilizing wildcard regular expressions or formula-based fuzzy search rules to let the software automatically identify the target numbers in the file names and replace them in batches.

Below, using HeSoft Doc Batch Tool as an example, a detailed demonstration is provided on how to replace four-digit numeric serial numbers in multiple docx file names with the unified -2026 in one go. The article will explain the purpose, setup method, and expected results of each step in the order of the screenshots, suitable for users who need to batch modify Word file names, doc file names, PDF file names, or other office file names.

Application Scenario: Different numbers in file names, but the modification rule is the same

This method is suitable for situations where "a certain type of content in file names varies but can be described by a unified rule." For example, file names all end with four digits; although the specific numbers differ, they all conform to the characteristic of "four consecutive digits." Or, file names all contain dates, version numbers, batch numbers, and serial numbers that need to be uniformly replaced with a new year, project phase, or standard suffix.

Common scenarios include: batch changing random numeric IDs in the file names of Word study materials to a year; batch changing old numbers in docx contract file names to a new project number; batch replacing four-digit dates or version numbers in exported file names; batch organizing document names collected from different people; batch updating historical years in file names to the current year uniformly.

Unlike ordinary text replacement, the advantage of fuzzy search is that you don't need to know the specific number in each file name in advance. As long as these numbers meet the same pattern, a single rule can be used to complete the match. For example, \d{4} used in this case can be understood as finding four consecutive digits. This way, whether the number in the file name is 2468, 5820, or 2024, it can be uniformly identified.

Result Preview: Word file names before processing contain random four-digit numbers

First, look at the effect before processing. There are 5 Word documents in the folder, all with the extension .docx. The main names are EnglishVocabulary, ExamReview, LearningGoals, MathNotes, and StudyPlan, but each name is followed by different four-digit numbers.

image-Batch replacement of Word file names,fuzzy regular search,docx renaming,batch replacement of numeric numbering,file name keyword modification

These numbers marked by red lines are the keywords for this batch modification. Since they are not a single fixed text, you cannot simply search and replace "2468" or "2024". If you replace them one by one, you need multiple repeated operations; but using a regex fuzzy search, "four consecutive digits" can be treated as an overall rule for processing.

Result Preview: After processing, they unifiedly become the -2026 suffix

After processing is completed, the four-digit numbers in each file name are replaced with -2026. The main part of the file names remains unchanged, and the extension .docx also remains unchanged. The resulting file names are more in line with annual archiving and data management habits.

image-Batch replacement of Word file names,fuzzy regular search,docx renaming,batch replacement of numeric numbering,file name keyword modification

The change before and after processing is very intuitive: EnglishVocabulary2468.docx becomes EnglishVocabulary-2026.docx, ExamReview5820.docx becomes ExamReview-2026.docx, LearningGoals3091.docx becomes LearningGoals-2026.docx. That is, the software only replaces the matched numeric part, without destroying the main file name or file type.

Operation Steps: Batch renaming with HeSoft Doc Batch Tool

Step 1: Open the file name category, choose to find and replace keywords in file names

After starting HeSoft Doc Batch Tool , first observe the functional navigation on the left. The screenshot shows that this office software divides multiple tool categories based on usage scenarios, including File Names, Folder Names, File Organization, Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, Image Tools, etc. Since the goal of this operation is to modify "file names," you should enter the "File Names" category.

Among the file name-related tools, click "Find and replace keywords in file names". From the functional description, it can be seen that this is used for batch finding and replacing keywords in file names, which perfectly matches the requirement to be addressed in this article.

image-Batch replacement of Word file names,fuzzy regular search,docx renaming,batch replacement of numeric numbering,file name keyword modification

The expected result of this step is to enter the file name find and replace task page. Choosing the correct tool is very important, as batch modifying file names and batch modifying Word document body content are two different types of operations. This article only changes file names and will not require opening or editing the body of Word documents.

Step 2: Import the docx or doc files to be processed

After entering the task page, the top of the interface displays the current function as "Find and replace keywords in file names". The page workflow starts from "Select records to process". At this point, you can click "Add Files" in the upper right to add the Word files to be processed to the list; if the files are all in the same folder, you can also batch import them through "Import files from folder".

image-Batch replacement of Word file names,fuzzy regular search,docx renaming,batch replacement of numeric numbering,file name keyword modification

The screenshot shows the list already displays 5 records, with information such as name, path, extension, creation time, and modification time listed. After importing, do not rush to the next step; it is recommended to first check the Name and Extension columns. For example, the extensions in this case are all docx, and the path is located under the D:\test directory, indicating that the imported objects are consistent with the example requirements. If files that do not need modification are mixed into the list, you can remove the corresponding records using the delete icon in the operation column.

After confirming the file list is correct, click the "Next Step" button at the bottom of the page. The purpose of this step is to define the scope of files to participate in the batch renaming, preventing subsequent rules from acting on incorrect files.

Step 3: Enable formula fuzzy search in processing options

After entering "Set processing options", the page will display "Set keyword options." Under "Search method", two choices can be seen: one is "Exact text search," the other is "Use formula fuzzy search for text." This case needs to match non-fixed four-digit numbers, so "Use formula fuzzy search for text" should be selected.

image-Batch replacement of Word file names,fuzzy regular search,docx renaming,batch replacement of numeric numbering,file name keyword modification

"Formula fuzzy search for text" can be understood here as rule-based matching for batch file names. Exact search requires an identical piece of content in each file name, while fuzzy search is more suitable for handling variable content like serial numbers, dates, and transaction numbers. After selecting the correct search method, the subsequent keyword list can achieve a regex-like matching effect.

Step 4: Input the search rule \d{4} to match four-digit numbers

Input \d{4} in the "List of keywords to find" on the left. The meaning of this rule is to match four consecutive digits. Corresponding to this case, 2468 in EnglishVocabulary2468.docx, 5820 in ExamReview5820.docx, and 2024 in StudyPlan2024.docx will all be identified as objects to be replaced.

When entering the rule, it is recommended to only write the part to be replaced, not to include the main file name or extension. For example, this case only intends to replace numbers, so inputting the four-digit number rule is sufficient. If you include .docx or other content into the rule, it may affect the final file name structure. For office files, keeping the correct extension is crucial; otherwise, the system might be unable to open the file with the default application.

Step 5: Set the replacement keyword to -2026

Input -2026 in the "List of replacement keywords" on the right. This means all four-digit numbers matched by \d{4} will be replaced with -2026. The reason for adding a hyphen before 2026 is to create a clear separation between the main file name and the year, making it easier to read and sort.

If your file naming convention is different, you can fill in other replacement content based on the actual situation. For example, change to _2026, -2026 version, -Archive, -Final, etc. The key is to define the final naming standard clearly before executing batch processing. For team collaboration files, it is recommended to adopt a unified format to reduce naming differences among members.

Step 6: Click Next, follow the workflow to complete saving location and start processing

After setting the search rule and replacement text, click the "Next Step" button at the bottom. According to the page flow at the top, subsequent steps include "Set saving location" and "Start processing". Before batch modifying file names, it's recommended to reconfirm the processing scope and saving location, especially for important data or production files. It's best to back up the original folder first, or verify the rules with a small number of sample files first.

After completing the start processing step, return to the folder to check the file names. If set correctly, you will see all four-digit numbers meeting the rule have been replaced by -2026, while the file bodies and extensions remain normal. Thus, multiple Word documents that originally required renaming one by one have been batch standardized through a single rule configuration.

Frequently Asked Questions and Notes

1. Is this method only suitable for Word files?

No. The screenshot example processes docx files, but because the function acts on the file name, it can also be used for doc, xlsx, pptx, pdf, txt, and other files. As long as there are keywords matching the rule in the file names, they can be batch replaced in a similar manner.

2. What if there are multiple four-digit numbers in a file name?

If a file name has multiple segments of four consecutive digits, extra caution is needed when using \d{4}, because any part matching the rule might be caught. It is recommended to test with a few files first to confirm the actual replacement results meet expectations. For file names with complex structures, you can organize them in batches or use more precise rule concepts to limit the target position.

3. What happens if the list of replacement keywords is left blank?

The prompt in the right area of the screenshot says, "If left blank, it means delete." This means if the replacement keyword is empty, the matched content might be deleted. The goal of this article is to change the four-digit numbers to -2026, so the replacement text needs to be explicitly filled in, avoiding the removal of numbers that would make the file names incomplete.

4. How to reduce risk before batch processing?

It is recommended to follow three principles: back up first, test with a small batch first, then execute on the full batch. Batch tools can significantly improve efficiency, but the premise is that the rule settings are accurate. Especially when dealing with important contracts, financial materials, teaching resources, or project delivery files, verifying before full-scale processing can reduce rework caused by operational errors.

5. Why are the processed file names more suitable for archiving?

Unified file name formats can improve retrieval efficiency. For example, "Material Name-Year.docx" is easier to understand than "Material NameRandomNumber.docx" and more convenient for annual archiving. When the number of files is vast, standardized naming can reduce communication costs, allowing team members to determine the use and version of a file more quickly.

Summary: Using regex fuzzy search to batch replace file names, reducing repetitive labor

Batch modifying file names is not just a simple cosmetic operation, but a fundamental efficiency step in office data management. Through HeSoft Doc Batch Tool , you can use the "Find and replace keywords in file names" function in the File Names category to batch replace irregular four-digit numeric serial numbers with the unified year -2026. The entire workflow includes selecting the function, importing files, enabling formula fuzzy search, entering \d{4}, setting the replacement text, continuing to the next step, and starting processing.

If you often need to organize Word, docx, doc, PDF, or other office files and encounter file names containing random IDs, old years, dates, or version numbers, you can prioritize this rule-based batch processing method. It can transform a large amount of originally repetitive manual renaming into a single clear rule configuration, saving time, making file naming more uniform, professional, and facilitating long-term management.


Keyword:Batch replacement of Word file names , fuzzy regular search , docx renaming , batch replacement of numeric numbering , file name keyword modification
Creation Time:2026-06-30 06:58:30

Disclaimer: All images, text, and video content on the website are for reference only and may not be the latest, correct, or accurate. In case of any dispute, please refer to the actual experience effect!

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