Google Form / Google Sheets - Add Leading Zero on Form Responses

I have exp in Google form script. I can do this. I can automate the Google spreadsheet and form

Hi, I am working as a freelancer since 12 years and completed 1500 projects. I assure you 100% accuracy in the delivered work. I look forward to work with you. Please provide me an opportunity to get started and prove my skills. Thanks

Can resolve this for you in 20 minutes. Extensive excel/vba experience in an reporting and analytics.

I can build new better for exactly as you need by my codes not google form

I can solve your problem because I am familair with such situations. Look no further, contact me lets discuss the detail and get your problem solved.

Hello, I have over 15 years experience writing Excel spreadsheet solutions for business and personal use. I gather that you wish to have some way to take the data contained in a Google Sheet, replace the leading zeros and ensure the text is 11 characters, with any difference in length being validated, for example, text in red, or "INVALID" showing in the cell. Your proposal sounds easily achievable and I would be happy to collaborate with you in due course regarding the project. I hope to hear from you soon, Kind regards, Chris James

Hello: I can successfully deliver your job for $10 within 2 days.

A proposal has not yet been provided

I can do it fast on excel spreedsheet. I had done something simmilar with polish PESEL numbers. I am a Excel trainer with more than 5 years of experience.