What is a PSI file?
A .PSI file can belong to several different software systems. Most commonly, it is a video surveillance index file created by Arecont Vision NVR software to track video data. Alternatively, it can be an image frame file used by PhotoScape to apply decorative borders to pictures.
Other Uses for PSI Files
Because the .PSI extension is used by multiple developers, your file might serve a different purpose. It could be a server diagnostic package used by Thermo Fisher Scientific, which is essentially a compressed ZIP archive containing error logs. Other systems use .PSI files as SQLite databases for PKI Site Information, software deployment packages for NCR APTRA, or MPEG Program Specific Information. It is also used as a PrimalScript Online Help Shortcut by Sapien Technologies.
How to open PSI files?
Because a .PSI file has multiple possible meanings, you must identify its true format before opening it. If it is a compressed archive, you can rename the extension to .ZIP and extract the contents. If it is a database, you can use standard SQLite tools. However, guessing the format can be difficult.
Instead of guessing, viewer.online/psi can analyze .PSI files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
viewer.online/psi is extremely useful for identifying, inspecting, and understanding .PSI files without installing software or dealing with compatibility problems.