Easy way to get vcf file of all telegram contact from telegram desktop contact export file (contacs.html)
First you should log in to telegram desktop version 1.4.3
Go to settings -> Advanced -> Export Telegram data. Check "Contacts list" option and uncheck another then click export button.
Just run TelegramToVCF.exe file!
Address contacts.html located on \Telegram Desktop\DataExport_XX_XX_XXXX\lists folder and specify path to save vcf file and then click export button.