Description:

This is my use-case study(demo/example/sample/tutorial) for that SheetJS-example(thank you!)
The project can be processed in

• windows 10 Pro-build 19045(see test1.bat
  need to have PhP already installed and placed in System Path to can be easy searched)...
  
• and/or, in Github as free repository.
  For accesing this website from github use that URL: https://stefanache.github.io/SheetJS/
  
  Remark: for this project, as example input sheet file( test1.xlsx), you can download it from this repository into
  your PC in "downloads"-directory, and... then ...
  when run this website you will can to upload the file dowloaded previously(by pressing "Choose file"-button).

Conclusion:

The static website can be free hosted on github. Remotely, in github the scenery can be that:

1. Create one new repository for your project
2. Upload this kind of website content(like files from this project SheetJS)
3. Publish/Deploy this repository(settings->Pages....)

The website's, in recurrently exploitation will need the following steps:

a) Localy, on your PC, prepare the input data sheet file(like test1.xlsx )
Optionally, you can manually upload it on github in your static website(cum ar fi stefanache/SheetJS/test1.xlsx)...
for your remeber only!

b) Open the your website in your Browser and
upload the above(point a) locally input data file, by pressing "Choose File"-button
The effect will be that you can see the tabellar data under this button. Enjoy!

Note: If your choice is to work locally,after point (a) then need only run(by clicking it)this test1.bat file.
Automatically the site will be accessing(automatic point b) into your Chrome Browser!

Finally, you can see/understood more info/proof concept about this project using AI-tool(chatGPT-like but for developpers): getOnBoardAI applyed for this ghithub repository

Remark ----- The most important questions in your request for OnBoardAI, can be:

   'What is the purpose of the test1.bat file in the SheetJS project?'

or,

   'What is the purpose of the index.html file in the SheetJS project?'

The getOnBoardAI's chat link for this site is: that(you can try it!)