Sure, this is possible. It sounds like a fun project. I assume that the Excel files will always be provided in an identical format? Or...?

Yes, this can be done. I can do this for you. Please PM me more details so can take a look.

It's a very simple job for my team as we have done these kinds of work before.

That could be done with VB.net & multiple datagrids. Just use CSV files for the content & it's basic tabs or commas for separating the column data. Assuming you're looking for an offline Windows desktop app.

What you want can be done either in Visual C# with MS SQL as the database either as a desktop or web based application; or in PHP w/MySQL as the database. And the fact that the tabs (sheets) in the excel sheets won't be in the same place will make it a bit harder but nothing out of the ordinary that can't be handled by an experienced programmer.

I definitely have the experience to build this project and have worked on both languages C# and PHP on many other projects. And I'm available to talk here via PM or via email if you're still looking to build this project.

Hope that helps.

Use Mysql it is free and good. so many small companies still uses it as database. Or you can use SQL database there is not much difference in coding of both.