I'm sorry to hear that you're having trouble sending files through Teams chat. Here are a few things you can try:
- Check your internet connection. A weak or unstable connection could be causing the file transfer to fail.
- Check the size of the file you're trying to send. If it's too large, you may need to compress it or use a different method to send it.
- Try sending the file through a different channel, such as email or a file-sharing service like Dropbox.
- Restart Teams and try sending the file again.
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