STX File

What are STX files and how to open them

Are you having problems opening a STX file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a STX file?

STX files have multiple uses, and Pinnacle Studio Project is one of them. Read more about the others further down the page.

Pinnacle Studio Project

The .stx file extension is most commonly used with the Pinnacle Studio video editing program.

The STX files are project files that are created with the software.

These files contain the project settings of the video as well as references to other media and data files that are used by the Pinnacle Studio project.

How to open STX files

We have identified one STX opener that is compatible with this specific type of STX file.

Programs that open Pinnacle Studio Project files

Pinnacle StudioPinnacle StudioVerified

Last updated: December 8, 2022

All known file formats using extension .STX

While Pinnacle Studio Project is a popular type of STX-file, we know of 4 different uses of the .STX file extension. Different software may use files with the same extension for different types of data.

StockChartX Data

StockChartX is a stock chart programming library for C++ developers. Claiming to be over 200% faster than other charting components, StockChartX is popular among developers of financial applications.

STX opener for Windows

We have identified one STX opener that is compatible with this specific type of STX file.


More file formats using the STX extension

Through our research of STX files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • EditPlus Syntax File
  • PASTI Disk Image

Various apps that use files with this extension

These apps are known to open certain types of STX files. Remember, different programs may use STX files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Express LabelerExpress LabelerUser submitted
ACD Showtime! for PENTAXACD Showtime! for PENTAXUser submitted
EmbirdEmbirdUser submitted
PL7 ProPL7 ProUser submitted
StudioTaxStudioTaxUser submitted
SV ApplicationSV ApplicationUser submitted
SAS Universal ViewerSAS Universal ViewerUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
ThumbsPlusThumbsPlusUser submitted
StudioStudioUser submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about STX file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.