Database files

hi
I have a database that includes 4 files (2 data files and 2 log files)
file name file Type group size path file name

file1 Rows data Primary 107 c:\library1 file1.mdf
file2 Rows data Primary 1 c:\library2 file2.mdf
file1_log Journal Non applicable 1 c:\library1 file1.ldf
file2_log Journal Non applicable 22 c:\library2 file2.ldf

I do not know how two new files were created

I would like to make only two files

I tried to save it and restorer, but I do not arrivves

during the restoration, the system requested 4 files

do you have a solution

thanks