Sometimes, when inputting data, it becomes imperative to italicize headers for streamlined tracking.
Step 1: Open the Excel file you wish to apply italics at any angle.

Step 2: Position the mouse cursor over the text cell you intend to italicize. For example, italicize the first cell in the header row.
Alternatively, you can italicize the entire header row by selecting the header cells for manipulation.

Step 3: Next, right-click and choose Format Cells.

Step 4: In the Format Cells dialog box, navigate to the Alignment tab. In this tab, enter the desired tilt angle in the Degrees section.
Example: To tilt at a 35-degree angle, enter 35 in the Degrees box.
Then press OK.

The result if you choose a first header cell will look like this:

If you choose all header cells to italicize, the result will be as follows:

To prevent header names from being truncated, select all header cells, go to the Home tab, choose Format -> AutoFit Row Height. The result will be like this:

The article above has guided you on how to italicize text at any angle in Excel. You can enter the desired tilt of the text based on your requirements or preferences. Wishing you success!