Excel OCX is an ActiveX component (written in Visual Basic 6.0) that comes equipped with functions to interact with MS Excel files.
Some of these functions of Excel OCX will allow you to obtain the data of the different cells of the XLS spreadsheet that you indicate, create reports from that data, view them, and so on.
When all these functions are implemented in Excel OCX, you don't have to waste time designing them, since just by referencing them, with the parameters that each function needs, you will get the desired result. This will always save you considerable time and effort.
You can free download Excel OCX 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.