Hello Greetings

If the PYQ book for JEE downloaded successfully but won't open, here are some possible reasons and solutions:

File Format Issues

1. *Incorrect file format*: Ensure the file is in a compatible format (e.g., PDF).

2. *Corrupted file*: Try re-downloading the file or checking the download source.

Software or App Issues

1. *No PDF reader*: Install a PDF reader (e.g., Adobe Acrobat Reader) to open the file.

2. *Outdated software*: Update your PDF reader or browser to the latest version.

3. *Mobile app issues*: If using a mobile device, try a different PDF reader app.

Device or System Issues

1. *Insufficient storage*: Free up storage space on your device.

2. *Operating system issues*: Restart your device or update your operating system.

3. *Browser issues*: Try opening the file in a different browser.

Permissions or Security Issues

1. *File permissions*: Ensure you have permission to access the file.

2. *Antivirus software*: Check if your antivirus software is blocking the file.

Troubleshooting Steps

1. *Check the file size*: Ensure the file is not empty or corrupted.

2. *Try a different download source*: Download the file from a different website or source.

3. *Contact the download source*: Reach out to the website or source for assistance.

If none of these solutions work, please provide more details about your device, operating system, and the download source, and I'll do my best to help you troubleshoot the issue.

Have a great day