Omnichannel - Telegram Integration - Sending Excel Files, CSVs is not delivered to contacts

Description:

I'm using the community version of Rocket.Chat
I installed telegram app to my Omnichannel
I configured the telegram app to accept all media file types (left the field empty)
When I try to send excel or csv files, the system accepts them, but they are not delivered to the contact

Steps to reproduce:

1. Install Telegram App
2. Configure the app to accept all media files ( keep the field empty)
3. Start a conversation with the telegram bot from a contact
4. As an agent, try to send excel or csv

Expected behavior:

The excel or the csv should be delivered to the contact

Actual behavior:

The system accepts the file and marks it as sent, but the file is not delivered to the contact

Server Setup Information:

• Version of Rocket.Chat Server: 4.6.3
• Operating System: Windows 11
• Deployment Method:
• Number of Running Instances: 1
• DB Replicaset Oplog:
• NodeJS Version: v14.18.3
• MongoDB Version: 5.0.9 / wiredTiger (oplog Enabled)

Client Setup Information

• Desktop App or Browser Version: Chrome
• Operating System: Windows

Additional context

Relevant logs:

No files, tests, or entry points are named. Start by reproducing the Telegram Omnichannel flow with an Excel file and a CSV while reviewing the Telegram app's accepted-media configuration; done means both file types are delivered to the contact rather than merely marked as sent.