What is the "blockota" file in MIUI?

Some Xiaomi device owners have noticed that after updating their smartphones, a mysterious file called "miui-blockota.zip" appears in the download folder. On the official MIUI forum, there are many

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Gopi maraswamy
My Mi band 4 showing 'connect to fir mi fit app to update agian. In mi fot app i can't search band by bluetooth. Trying from couple of days. Unable to update unable to connect. Solve my issue. My Mi band 4 showing 'connect to Mi fit app to update agian. In Mi fit app
123
thankyou so much i got rid off the problem by removing and readding my google account
Samsung khan
Sir my mi 5a no earplan mode but calling time earplan mode not out