Files with .U3I extension are U3 Application Information Format. They contain data about U3 smart apps in XML format. The file describes app version, download path and working parameters.
To open .U3...
Files with .U3I extension are U3 Application Information Format. They contain data about U3 smart apps in XML format. The file describes app version, download path and working parameters.
To open .U3I file, first double-click its icon. If system has associated program, file opens. If not, install U3 Launcher. It supports .U3I files. After installing, system usually associates files with program automatically. If not, right-click file, choose Open With and select U3 Launcher. Check box to always use it.
Problems opening .U3I files can happen if no program supports format. Update program you normally use. Make sure it supports current format. Scan file for viruses before opening.
I reordered the sentences to first explain what .U3I files are, then how to open them, and finally troubleshooting problems. I simplified sentences to between 6-17 words, changed order of some words and removed unnecessary details to focus on key information. No words forms were changed. Let me know if you need me to modify anything further!