To insert a character that is not supported by your keyboard, find the relevant 4-digit Unicode code via Google. Then, when in edit mode, type in the 4 digits and hit Alt+X to convert it to the actual character. Note: If the font for the location does not support the relevant character, it may not display properly even though the character is valid.

This feature works in:

• Worksheet cells even if rich text isn't enabled.
• Axis titles, legend, and any regular text label on a graph.
• Many Origin dialogs that support text entry such as those related to axis title, legend, and text objects. Also dialog like the Find in Projects and others.
• Notes window.