Are you referring to a "crack" (bypass) for a specific software named Xtocc? Materials Science or Engineering:
Could you please clarify which interpretation you are looking for, or provide more context on the subject matter? Xtocc Crack
Is "Xtocc" a specific material, compound, or structural component where you are studying "cracking" or fractures? Niche terminology: Are you referring to a "crack" (bypass) for