The tools that would be used to make header 1 appear and look like header 2 is the alignment tool icon and the Bold tool icon.
To understand this question, we must understand the interface of the Microsoft Excel.
Microsoft Excel is a spreadsheet that can be used for a variety of features such as:
As a Microsoft software, Microsoft Excel can also be used to edit sheets. In the image attached, the required tool icons needed to change the header 1 into header 2 is the alignment tool icon and the Bold tool icon.
The two tools can be seen in the image as the two lower left icons.
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