Click the "Select File" button above, and choose your PSN file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert PSN to another file type
To convert PSN files to another format, you need CATIA or other Cad software.
Convert a file to PSN
To convert other file formats to the "CAD Session Data" file type, you need software like CATIA or a similar tool.
About PSN files
The .PSN file extension is primarily associated with CATIA VPM and CATIA V5 session files created by Dassault Systèmes. These files store the state of an active 3D CAD session, including user settings, assembly layouts, and project references. Alternatively, .PSN files function as legacy digital sticky notes created by 3M Post-it Software Notes, or as dialogue script files in the indie game Pizza Tower. To interact with CAD-based .PSN files, you must use CATIA. For the legacy sticky notes, older versions of 3M Post-it Notes are required, though the underlying architecture relies on the Microsoft Compound File structure. Users often need to convert .PSN files because they lack access to costly CAD licenses or are trying to recover old text data from unsupported legacy software. The heavy proprietary nature of CATIA means these session files are effectively locked to the original software ecosystem. For CAD .PSN files, target formats like STEP or IGES are ideal for cross-platform sharing, but extraction requires the original CATIA engine. Legacy note files are best converted to plain TXT or PDF to ensure the text remains accessible. These formats are notoriously difficult to open and convert. CATIA session files are highly proprietary, while legacy note formats are obsolete. Typical online converters will fail to process them. However, drag and drop your file onto convert.guru to identify the format, view raw hex or text strings, and convert it when possible. If our analysis detects an embedded structural format, partial text recovery or viewing may still be possible.
Convert.Guru analyzes your PSN file, detects the exact format, and lets you read the text inside.
If you want to convert PSN file to ISO, CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT or DB, you can use CATIA or similar software from the "CAD Session Data Storage" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to PSN, try CATIA or another comparable tool in the "CAD Session Data Storage" category.
The PSN Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our PSN converter.