TeleDrive is a company (twitter handle) that was the first to think of using the Telegram API to create a cloud storage service, why pay for servers - if you can use ready-made ones and be an intermediary in providing services "you can download as many free as many files as you want” is only limited to 1.5 GB daily bandwidth and 2 GB upload and download limit, but these limits can be avoided.
Go to https://ge.teledriveapp.com and register an account.
Note: Do not enter the details of your main account. Use a dummy one.