How to Batch and Fuzzy Delete Keywords in Multiple Word Documents Using Regular Expressions


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This article describes how to use HeSoft Doc Batch Tool to perform batch fuzzy deletion of keywords in multiple Word or docx documents using regular expressions. In the example, 6 docx files are imported at once, and rules such as [A-Z]{3} and \d+ are used to match three uppercase letters and numeric content, with the replacement content left empty, thereby achieving batch deletion. It is suitable for handling repetitive content such as numbering, codes, abbreviations, and sensitive words in contracts, papers, document templates, and English documents, reducing the time cost of opening Word documents one by one for modification.

When organizing a large number of Word documents, you often encounter a situation where the content to be deleted is not completely identical fixed text, but text that conforms to certain patterns. For example, three-letter uppercase abbreviations, course codes, numbers, page numbers, batch numbers, etc. in English documents. If you open docx or doc files one by one and manually search and delete them, it is not only inefficient but also prone to missed changes.

This article uses the example of "batch fuzzy deletion of keywords in many Word documents using regular expressions" to introduce how to use the office software HeSoft Doc Batch Tool to batch find and delete rule-based content in multiple Word files. The core value of the software lies in batch file processing, helping users reduce repetitive work and improve document organization efficiency.

Applicable Scenarios: Which Word content is suitable for batch deletion using regex

When the text to be deleted follows certain patterns rather than being a single fixed word, it is suitable to use regular expressions for fuzzy matching. For example:

  • Batch delete numeric codes in Word, docx, or doc files, such as 60, 2026, 001, etc.;
  • Batch delete uppercase abbreviations in English documents, such as BOT, ELA, etc.;
  • Delete course codes, project numbers, batch numbers, serial numbers in documents;
  • Clean up repetitive markup content exported from web pages, systems, or templates;
  • Uniformly perform keyword find and replace or deletion across multiple Word files.

In this example, the files to be processed are multiple docx files, and the goal is to match some uppercase English abbreviations and numbers in the documents using regular expressions and batch delete them.

Effect Preview: Comparison before and after processing

Before processing: Multiple Word files contain patterned content that needs to be deleted

Before processing, there are 6 Word documents in the folder, all with the docx extension, to be batch processed at once.

image-Batch delete keywords in Word,use regular expressions to delete Word content,batch find and replace in docx

Opening one of the Word documents shows that the body text contains three-letter uppercase content like BOT and ELA, as well as numeric content like 60. If this type of content is distributed across many Word files, manually searching and deleting it would be very time-consuming.

image-Batch delete keywords in Word,use regular expressions to delete Word content,batch find and replace in docx

After processing: Keywords matching the regex rules are batch deleted

After processing is complete, reviewing the Word document shows that the original BOT in the title has been deleted, and the numeric content in the body has also been deleted. Since the replacement keyword list is kept empty, the software directly removes the matched content, thus achieving the effect of "batch fuzzy deletion of Word keywords."

image-Batch delete keywords in Word,use regular expressions to delete Word content,batch find and replace in docx

Operation Steps: Using Regular Expressions to Batch Delete Keywords in Word

Step 1: Enter the Word tools and select the Find and Replace function

Open HeSoft Doc Batch Tool , and select Word Tools from the function bar on the left. In the function list, find and click "Find and Replace Keywords in Word". This function is used for batch finding and replacing keywords in Word file content, and can also achieve batch deletion by "leaving the replacement content empty."

image-Batch delete keywords in Word,use regular expressions to delete Word content,batch find and replace in docx

After entering this function, the subsequent operations will be divided into steps according to the process: selecting records, setting processing options, setting the save location, and starting processing.

Step 2: Add the Word, docx files to be processed

On the "Select records to process" page, click "Add Files" and select the Word documents to be processed; if the files are centrally stored in the same folder, you can also use "Import Files from Folder".

image-Batch delete keywords in Word,use regular expressions to delete Word content,batch find and replace in docx

After the files are imported, the list will display information such as file name, path, extension, creation time, and modification time. The example shows 6 imported docx files, indicating that these files will be the targets for this batch find and replace. After confirming the list is correct, click "Next" at the bottom.

Step 3: Select "Use formula to fuzzy find text"

After entering the "Set processing options" page, choose "Use formula to fuzzy find text" under "Find method." The "formula" here can be understood as a regular expression rule, used to match a category of text that conforms to a pattern, rather than matching just one fixed word.

image-Batch delete keywords in Word,use regular expressions to delete Word content,batch find and replace in docx

If you only want to delete exactly identical words, you could choose exact search; but since this example aims to delete "multiple content items that match a pattern," the fuzzy find method should be chosen.

Step 4: Fill in the regular expressions to find

In the "Keyword List to Find" on the left, enter one matching rule per line. Two rules are entered in the example:

  • [A-Z]{3}: Matches 3 consecutive uppercase English letters, e.g., BOT, ELA;
  • \d+: Matches one or more numbers, e.g., 60, 2026, 001.

The purpose of this step is to tell the software which "text matching the rules" to find in all imported Word documents. Compared to manually entering fixed content like BOT, ELA, 60, using regular expressions can cover more similar text and is suitable for batch fuzzy deletion.

Step 5: Leave replacement content empty to achieve batch deletion

The right area is the "Replacement Keyword List". You can see a prompt in the screenshot: "Leaving blank means delete". Therefore, if the goal is to delete the matched content rather than replace it with other text, keep the replacement list on the right empty.

With this setting, the software will find content matching [A-Z]{3} and \d+ in each Word document and replace the matching results with empty strings, equivalent to batch deleting these keywords.

Step 6: Set the save location and start processing

After completing the keyword rule settings, click "Next" and follow the interface flow to "Set save location". It is recommended to choose an appropriate save location based on actual needs to avoid directly overwriting original files, which could make rollback difficult.

After confirming the save location, proceed to the "Start Processing" step to execute the batch processing. Once processing is complete, open the output Word files to check if the keywords have been deleted according to the rules.

Common Questions and Considerations

1. Why should the replacement keyword list be left empty?

Because the goal this time is to "delete" the keywords, not to replace them with other content. According to the interface prompt, leaving the replacement content blank means deletion, so simply keep the replacement list on the right empty.

2. Could regular expressions accidentally delete content?

This is possible. For example, [A-Z]{3} will match all consecutive 3 uppercase English letters, not just BOT or ELA; \d+ will match all numbers. Therefore, before batch processing, you should confirm whether the rules match the actual requirements, and if necessary, test on a small number of Word files first.

3. Can both doc and docx be processed using this approach?

The example files in this article are docx. Based on the function name and processing target, this function is used for keyword find and replace in Word files. During actual processing, you can import the Word, docx, and doc files to be processed into the list, and the software's detection result shall prevail.

4. If I only want to delete fixed keywords, do I still need regular expressions?

Not necessarily. If the content to be deleted is a completely fixed phrase, you can use exact text search; if you want to delete a category of variable content, such as different numbers, different codes, different abbreviations, it is more suitable to use formula fuzzy text search.

5. Do I need to back up before batch processing?

Backups are recommended. Regular expressions have a relatively wide matching range, especially when processing a large number of Word files. Keeping the original files or saving to a new location first can reduce the recovery cost after accidental deletion.

Summary: Using Regex to Batch Delete Word Keywords, Reducing Repetitive Modifications

Using the "Find and Replace Keywords in Word" function of HeSoft Doc Batch Tool , you can turn the task of opening Word documents one by one and searching and deleting content everywhere into a one-time batch process. For numbers, abbreviations, digits, codes, and other patterned text in Word files like docx, doc, using regular expressions for fuzzy matching and then leaving the replacement content empty allows you to quickly complete batch deletion.

If you often need to organize a large number of Word documents, it is recommended to first prepare the files to be processed and the regex rules, then follow the steps in this article to import the files, set up fuzzy search, leave the replacement content empty, and start processing. This can significantly reduce repetitive operations and improve the efficiency of document cleanup and standardization.


Keyword:Batch delete keywords in Word , use regular expressions to delete Word content , batch find and replace in docx
Creation Time:2026-05-20 09:50:34

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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