How to open excel and do the validation using vb.net code without using activities?

Hi,
I need to perform validations.can anyone guide me with the vb.net code.
ex: to validate no.of characters or integers,date format

Hi raghu,

You can google for VB.Net Code, but for Vb.Net code to work in uipath, you can use Invoke code or you can write a custom activity in visual studio

Thanks