.TS File Extension

A TS file is a text file that contains TypeScript code, an open source programming language developed by Microsoft. TypeScript is a superset of ECMAScript 2015, which is a superset of JavaScript. It is used for developing medium- to large-scale JavaScript applications for server-side or client-side execution. TS files are similar to JavaScript .JS files.

TypeScript was made public in late 2012 and was developed for the purpose of easing the development of components in complex JavaScript code. It is a statically typed superset of JavaScript that compiles to plain JavaScript, which can be run on web browsers, in Node.js, or in any JavaScript engine supporting ECMAScript 3 or later. The language extension comes with all the features of JavaScript while adding features such as static type checking, interfaces, type erasure, enumerated type, and namespaces.

A TS file is a video stream file used to store video on a DVD. It compresses video data using standard MEPG-2 (.MPEG) video compression. The TS file format is used primarily to save streamed or broadcast video.

You can open TS files using VideoLAN VLC media player, a free-to-download media player. To open a TS file in VLC media player:

1. Select Media/File → Open File….
2. Navigate to the folder containing the TS file.
3. Select the TS file and either click Open or double-click the file to open it.

Language translation file created by the lupdate utility, which is included with Digia's Qt SDK; contains phrases and their translations into another language; used for storing translations specific to a particular application.

TS files can be converted to .QPH files using the lconvert utility, which is included with the Qt SDK. Unlike TS files, QPH can be used for multiple applications. Both TS and QPH files are stored in an XML format.

NOTE: Qt SDK was previously developed by Nokia before Digia acquired the software.