Can someone build our app for us?

Can someone build our app for us?

  
Can't say, I really understand this, I am looking for a app I can merge all our spreadsheets together, to then market to people to search?  Is this possible and if so, can someone make this for us? 
If you really don't understand it, how can we know what you mean?
If I understood, you want an app to merge several distinct spreadsheets, and give access for your market team to search in the data?

Some questions that can be raised are:
- are those sheets based on predefined templates (with static columns) or can they change?
- the accesses to be given to each person/team are document-based or line-based?
- such accesses are to be managed in the app?
- that app is supposed to keep data while offline?

It can be done, but this is one of those projects that seem to take half an hour and will later drag for months. Without a good specification no one can give you a safe estimate.
Thankyou for the comments everyone and personal messages I received, very helpful - I have begun discussions with someone on this now.  Kindly,