Handwriting OCR Model Development

I am seeking a qualified professional to develop an OCR model that's specialized in reading English handwriting. This OCR model is intended to decipher handwriting from a broad demographic range - from children of 5 years old to adults. The output should be categorized and formatted into an excel sheet.

Key Aspects Include:
- Development of OCR model utilizing English language only
- OCR model application should be primarily on handwritten letters
- Exportation of interpreted data into a structured excel sheet

Skills and Experience Required:
- Substantial knowledge and hands-on experience in OCR technology
- Proficiency in English handwriting interpretation
- Understanding of Excel and data categorization
- Experience with a diverse age demographic is a plus
- Previous work with handwriting recognition technology will be highly valued

Using OCR or AI is fine, i just want the best model.

Need the ability to upload to the model on a basic test website and see results returned on that website and downloaded to excel.