how to get the data with date difference.

You are making the same mistake that I see time and time again. You are mixing up the two elements of data capture and final reporting. The two require quite different treatments.

A lot of people start by designing the form that they expect to see as the final report, and then wonder why it's so difficult to subsequently analyse and summarise or extract information from it, Yours exhibits all those features.


You should always capture data in a simple two dimensional table and worry about reporting information from it afterwards. Without exception doing this you will always be able to easily obtain management information. Rarely is this the case if you start the other way round.
You will also throw open the whole wonderful world of the powerful Pivot table functionality.

I suggest you consider redesigning your basic data so that everything goes on a single sheet. You will need to add additional columns to hold things like the client name/code, and if there is fixed information for each client, like Classification, Category, Address etc., hold this in a separate table for each client.

Finally if this is a complete commercial business application as it appears, consider putting it in the Commercial Services forum and paying a modest charge for it.