Hello Sir,
We are expert in java, j2ee, javafx, swing, awt and also in struts, spring boot, Spring security. We will be the perfect one for your project.
Please let us know your detailed requirement we can start right now and we will complete in 5-6 hour time.
One Question regarding your project - Why you splitting excel file into small parts. Is it for security purpose? Like when any excel is uploading by user it will split in multiple parts and when any one authorised person will need to check excel all parts will combine at the movement.
If yes we should go for shamir secret sharing. Please ping me we can discuss over it.
Thanks & Regards