If you want to keep only the latest version of a file in your Git repository and remove its history, you can achieve this by rewriting the repository’s history. However, be cautious as this operation is destructive and will rewrite the commit history. Here’s how you can do it:

1. Backup Your Repository: Before making any changes, it’s a good idea to create a backup of your repository in case something goes wrong.

2. Clone the Repository: If you haven’t already, clone your repository to your local machine.

   git clone <repository-url>  
   cd <repository-directory>  

3. Create a New Branch: Create a new branch to perform the history rewrite.

   git checkout --orphan latest_version  

4. Add the Latest Version of the File: Remove all files from the index and add only the latest version of the file you want to keep.

   git rm -rf .  
   git checkout HEAD <path-to-your-file>  
   git add <path-to-your-file>  

5. Commit the Changes: Commit this change to your new branch.

   git commit -m "Keep only the latest version of <file>"  

6. Delete Old Branch: Delete the old branch and rename your new branch to match the old branch’s name.

   git branch -D main  # or master, depending on your default branch name  
   git branch -m main  # or master  

7. Force Push to Remote: Force push the changes to your remote repository. This step will overwrite the remote history, so be very careful.

   git push -f origin main  # or master  

8. Inform Collaborators: If others are working on this repository, inform them about this change as they will need to re-clone the repository due to the rewritten history.

By following these steps, you will have a repository that contains only the latest version of the specified file without its previous history. Remember that this operation is irreversible, so ensure that you really want to remove all previous versions before proceeding.