Many programs generate numeric RAR or ZIP files when updating or exporting logs. If "48192" corresponds to a PID (Process ID), it may have been created by a running service.
Right-click the file and select Properties . Check the "General" or "Details" tabs to see if there is any information about when it was created or which program is associated with it. Common Tools for .RAR Files 48192.rar
The original software for the .rar format (offers a free trial). PeaZip: Another free, cross-platform alternative. Potential "48192" References Many programs generate numeric RAR or ZIP files
Reference numbers for land subdivision maps (e.g., Tract 48192). 48192.rar