Dear Mr Chochy
I am writing to apologise sincerely for not submitting my project in the agreed deadline. The purpose of this email is to explain the situation and reassure you that I am taking immediate steps to resolve it. Unfortunately, I encountered unexpected technical issues with my data files, which significantly delayed my progress. I should have informed you sooner, and I take full responsibility for the oversight.
To fix this, I am currently restoring the corrupted files and reorganising the remaining tasks to ensure accuracy and timely completion. I will submit the finished project by this friday, and I am available for a brief check-in if needed.
Thank you for your understanding.
Kind regards,
David
