Follow these simple steps to convert your XPS files into PDF format quickly:

Step 1: Install and launch XPS to PDF converter such as: Kernel XPS Converter.
Step 2: Add XPS or OXPS Files using the "Add File" or "Browse" button.
Step 3: Choose PDF as the output file type. 
Step 4: Select a location on your device to save the converted PDF file.
Step 5: Click on the Convert button.