How to Change Settings to Open a PDF File. A Portable Document File is a type of file that uses an open standard across different computer platforms and programs.

What is RPT file format? Learn how to open .rpt file or how to convert RPT file to PDF or Excel file in Windows without using Crystal Report.

PDF files are great, but you might need to make some changes in Word. Here's how to convert a PDF file into a Word document using a few of our favorite methods.

But it is not possible to know what contains in a DAT file. If a DAT file contains a video, audio, or PDF, you need to open it with respective applications, like a Media Player or a PDF Reader.

Close the Extension Manager dialog, and then use the "File" menu's "Open" command to load your multi-page PDF. Click a thumbnail in the Pages pane that displays a PDF page you do not want to keep.