Allow importing exported data (e.g. after an account reset)

[realityexists]

Telegram Desktop has had the ability to export data to HTML or JSON format for a while, but there doesn't seem to be a way to import that exported data. This would be useful for data that was deleted.

My current use case for this is that I am unable to install Telegram on a new Android device, because it says that my cloud password is incorrect (and I did not provide a recovery email). It offers the option to reset my account, clearing all data. I still have access to Telegram on my desktop, so this would be fine if I could then restore the deleted data from backup.

In addition to that use case it can be helpful if an individual contact or chat was mistakenly deleted and the import should provide the option to restore only some data.

[stale]

Hey there!

This issue will be automatically closed in 7 days if there would be no activity. We therefore assume that the user has lost interest or resolved the problem on their own.

Don't worry though; if this is an error, let us know with a comment and we'll be happy to reopen the issue.

Thanks!

[realityexists]

I have not lost interest nor resolved the problem on my own.

[stale]

Hey there!

This issue was inactive for a long time and will be automatically closed in 30 days if there isn't any further activity. We therefore assume that the user has lost interest or resolved the problem on their own.

Don't worry though; if this is an error, let us know with a comment and we'll be happy to reopen the issue.

Thanks!

[realityexists]

I have not lost interest nor resolved the problem on my own.