> For the complete documentation index, see [llms.txt](https://docs.helmut.de/helmut4-releases/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.helmut.de/helmut4-releases/v4.9.1/helmut4-components/streamdesigner/nodes/actions/file-and-folder/file-open-action.md).

# File Open Action

With the help of the File Move Open Action it is possible to open a file. The file is always opened with the program associated with this type of file on the operating system. This makes it possible to use this node for a large number of programs. The main use case is opening the project files (Premiere, After Effects, Audition). The node is just triggering the OS and the operating system is the parent process under which the program assigned to the file to be opened runs.