✅ Expo Check-in App (Persian)

A lightweight desktop application for checking attendee presence using mobile phone numbers and Excel files — built with PySide6 (Qt for Python).

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📌 What is this?

This is a custom-designed, Persian-language check-in system made for expo events, conferences, or timed gatherings. Organizers can:

• Switch between different time slots.
• Input a visitor's mobile phone number.
• Automatically verify their presence using Excel files.
• Play welcoming or error sounds.
• Show a friendly greeting in Persian.

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🛠️ How it works

1. Excel files (15.17.xlsx, 17.19.xlsx) contain attendee names and phone numbers.
2. You choose a time slot (e.g., 15-17 or 17-19) from the dropdown.
3. You type in the attendee's phone number (without leading zero).
4. If the number exists, the name is displayed with a greeting, and a welcome sound is played.
5. If not found, a “not found” message and error sound are triggered.

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🎯 Features

• 🔄 Time slot switcher (combobox).
• 🎵 Sound effects for welcome and error.
• 🎨 Beautiful Persian font and background.
• ⌨️ Keyboard-friendly (just type and press Enter).
• 🧾 Excel-based backend — easy to edit and manage.

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💡 How to run

1. Clone the repository or download the ZIP.
2. Install dependencies: