1. HTML sample page
The header_operations.py (or its expanded version) included in MOD development system is one of the important files that even experienced modders (MOD developers) refer to frequently, but searching for information across the file with text editor and/or command line tends to be complicated work.
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Download the sample offline web page:
Features:
- Comments consolidated into one line per operation for ease of search and translation.
- Multi-column sort. Click the 1st column and Shift-click the 2nd.
- Search using regular expression, logical AND/OR. >, <=, >=, <, !=, column number, etc.
- Operable column width.
- Pager (row height, jump, etc.).
- No internet connection required (except a link to the help page for filtering commands)
2. Converter
The sample web page has a set of <table> - </table> tag. When the header_operations.py (or its extended version) is revised or translated, it would be happy if it automatically loads the file from a specific relative directory, but modern web browsers are designed not to load arbitrary local files automatically due to security reason. It seems inconvenient to have to select a file in the file selection dialog every time the user opens a page, and if I put the whole page on a server, it can't be used in an offline environment.
So, I have prepared a converter (a separate Python script) to convert header_operations.py into <table> - </table> of HTML that contains its information. Instructions on how to use it are in the included readme.txt.
Download the converter (Python script): Note: This file may be updated at any time. When updating, I'll change the revision number in the tail.
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About the license of the header_operations.py file, tablesorter, Filter Widget, and JQuery libraries I used, please check on your own responsibility. You may freely modify and redistribute other parts (i.e. the sample web page other than <table> tag, and the convertor) without any notice to the author, but the author does not guarantee any loss, damage, or disadvantage that you may incur as a result of the use.
I will respond to bugs and feature suggestions as proactively and promptly as possible, but I cannot promise that I will always do so.

4. Acknowledgment to contributors
The tool is based on the unofficial works of many developers and proposers opened on the TW Forum and elsewhere. One of entry points:
Better MS Scripting Reference: header_operations expanded