Older versions like 13.3.2 are typically archived on third-party repositories rather than the official Google Play Store. Version 13.3.2 can be found on archives like Permissions:
The application provides an all-in-one productivity environment that includes: A word processor compatible with Spreadsheet: Used for data analysis and compatible with Excel formats. Presentation: A tool for creating slideshows. PDF Toolkit: wps office premium apk 13.3.2 download
The "Premium" designation refers to a subscription-based tier that unlocks advanced tools not available in the basic free version: PDF Editing: Older versions like 13