If you have .ai files created with the patched version, they are not corrupted. You can open them in:
Adobe Illustrator is the industry-standard vector graphics application used by designers worldwide to create logos, icons, drawings, typography, and complex illustrations. The 2017 release brought several enhancements to workflow, performance, and usability. However, many users often look for "Adobe Illustrator CC 2017 Multilingual Patched" versions, seeking to bypass subscription costs.
Using unauthorized copies of commercial software violates copyright laws and End User License Agreements (EULA). For freelance designers and businesses, using cracked software can result in severe financial penalties, audits, legal action, and a damaged professional reputation. Safe and Legal Alternatives
The "multilingual" designation indicates that the installation package includes language files for dozens of regions. Illustrator dynamically adjusts its user interface, dictionaries, and hyphenation rules based on the user's operating system language or selection during setup. Supported languages typically include: English (US/UK) Spanish (Latin America/Spain) French (France/Canada) Simplified and Traditional Chinese Arabic and Hebrew (with right-to-left layout support) System Requirements