To change font styles in CAD software, follow these general steps:

Open the Text Style Manager:

Type STYLE in the command line and press Enter. This opens the Text Style dialog box.

Create a New Text Style:

Click on the “New” button to create a new text style.

Enter a name for the new style and click OK, shown as below,

Select Font:

In the Text Style dialog, select the font you want to use from the Font Name drop-down menu.

You can also adjust the height, width factor, and oblique angle if needed.

Set as Current:

After configuring your font settings, click on the “Set Current” button to make this the active text style.

Apply the Text Style:

When you create text in your drawing, make sure to select the new text style from the properties toolbar or the text creation dialog.

Close the Text Style Manager:

Once done, close the Text Style dialog box to return to your drawing.