File list (Check if you may need any files):
RS232
.....\.lso
.....\device_usage_statistics.html
.....\main_rs232.bgn
.....\main_rs232.bit
.....\MAIN_RS232.bld
.....\MAIN_RS232.cmd_log
.....\main_rs232.drc
.....\MAIN_RS232.lfp
.....\MAIN_RS232.lso
.....\MAIN_RS232.ncd
.....\MAIN_RS232.ngc
.....\MAIN_RS232.ngd
.....\MAIN_RS232.ngr
.....\MAIN_RS232.pad
.....\MAIN_RS232.par
.....\MAIN_RS232.pcf
.....\MAIN_RS232.prj
.....\MAIN_RS232.stx
.....\MAIN_RS232.syr
.....\main_rs232.twr
.....\main_rs232.twx
.....\MAIN_RS232.unroutes
.....\MAIN_RS232.ut
.....\MAIN_RS232.v
.....\MAIN_RS232.xpi
.....\MAIN_RS232.xst
.....\MAIN_RS232_guide.ncd
.....\MAIN_RS232_map.map
.....\MAIN_RS232_map.mrp
.....\MAIN_RS232_map.ncd
.....\MAIN_RS232_map.ngm
.....\MAIN_RS232_pad.csv
.....\MAIN_RS232_pad.txt
.....\MAIN_RS232_prev_built.ngd
.....\MAIN_RS232_summary.html
.....\MAIN_RS232_summary.xml
.....\MAIN_RS232_usage.xml
.....\RD.prj
.....\RD.stx
.....\RD.v
.....\RD.xst
.....\RS.cel
.....\RS.lfp
.....\RS.ucf
.....\RS232.ise
.....\RS232.ise_ISE_Backup
.....\RS232.ntrc_log
.....\RS232.restore
.....\rs232ucf.cel
.....\rs232ucf.lfp
.....\rs232ucf.ucf
.....\rsucf.ucf
.....\tdfun.v
.....\xst
.....\...\dump.xst
.....\...\........\MAIN_RS232.prj
.....\...\........\..............\ngx
.....\...\........\..............\...\notopt
.....\...\........\..............\...\opt
.....\...\........\..............\ntrc.scr
.....\...\projnav.tmp
.....\...\work
.....\...\....\hdllib.ref
.....\...\....\vlg0C
.....\...\....\.....\_m_a_i_n___r_s232.bin
.....\...\....\vlg35
.....\...\....\.....\tdfun.bin
.....\...\....\vlg5E
.....\...\....\.....\_r_d.bin
.....\_impact.cmd
.....\_impact.log
.....\_ngo
.....\....\netlist.lst
.....\_pace.ucf
.....\_xmsgs
.....\......\bitgen.xmsgs
.....\......\map.xmsgs
.....\......\ngdbuild.xmsgs
.....\......\par.xmsgs
.....\......\trce.xmsgs
.....\......\xst.xmsgs