If the official Microsoft app doesn't meet your needs, these apps are free, compatible with .docx and .xlsx files, and much safer than a crack:

These "fixed" versions are often unstable, prone to crashing, and may result in the loss of your documents. Legal & Free Ways to Get Microsoft Office on Android 1. The Official Microsoft 365 (Office) App

The good news is that you don’t need to risk a "fixed" or "cracked" version. Microsoft offers several ways to use Office on Android. The Risks of Using Cracked Office APKs

Cracked versions don't receive security patches, leaving your phone vulnerable to exploits.

An open-source option for those who prioritize privacy. Conclusion