If you are in a hurry or it's possible that the data content needs edits you can copy and paste from Excel.

If there's no decorative borders in Excel you'll get a simple result. It has only the cell content and a clipping mask.

Release the clipping mask and you have a group which contains the outline rectangle (=previous clipping mask) and text objects. The rectangle can be used to place the artistically wanted grid.
If you insert borders or fills in Excel prepare to get complex grid. There's probably much more complex clipping masks, groups, colored rectangles and multiple lines than you expect. And the newer Excel you have the more complex it becomes. But if it happens to be visually ok as is and you accept RGB colors, let it be.
I have still alive a version of Excel 2003 because it makes relatively simple graph and table structures if pasted to Illustrator.
At least my legacy Illustrator refuses to place Excel files. That can be otherwise if you have modern versions of Excel and Illustrator. I can only copy and paste directly or Place a printed PDF.
In the web there seems to be much demand how to use Excel data in Illustrator. Search for it. There's even scripts which help to take certain fields from an Excel file and from what's linked to it. Check this for a start: https://www.youtube.com/watch?v=50WQPxTlVL0