Pocket Word Document (.psw)
The PSW file extension stands for Pocket Word Document, a text document created by Pocket Word, a portable word processor developed by Microsoft for Windows Mobile Pocket PC devices. It contains document text, formatting, images, and other data. Due to its limited use and support, PSW files are uncommon, and many modern word processing programs no longer support them. To open a PSW file, users can convert it to a DOC or DOCX format using various software.