File list (Check if you may need any files):
calculator project
..................\BCD_to_7SEG.vhd
..................\calculator
..................\..........\bc42en.prj
..................\..........\bc42en.spl
..................\..........\bc42en.stx
..................\..........\bc42en.sym
..................\..........\bc42en.vhd
..................\..........\bc42en.xst
..................\..........\bc42en_vhdl.prj
..................\..........\BCD_to_7SEG.prj
..................\..........\BCD_to_7SEG.stx
..................\..........\BCD_to_7SEG.sym
..................\..........\BCD_to_7SEG.vhd
..................\..........\BCD_to_7SEG.xst
..................\..........\BCD_to_7SEG_vhdl.prj
..................\..........\calculator.cmd_log
..................\..........\calculator.ise
..................\..........\calculator.ise_ISE_Backup
..................\..........\calculator.jhd
..................\..........\calculator.sch
..................\..........\calculator.schlog
..................\..........\calculator.sym
..................\..........\calculator_summary.html
..................\..........\clk_divider.prj
..................\..........\clk_divider.spl
..................\..........\clk_divider.stx
..................\..........\clk_divider.sym
..................\..........\clk_divider.vhd
..................\..........\clk_divider.xst
..................\..........\clk_divider_vhdl.prj
..................\..........\keycatch.cmd_log
..................\..........\keycatch.jhd
..................\..........\keycatch.sch
..................\..........\keycatch.schlog
..................\..........\keycatch.sym
..................\..........\keycatch.tfi
..................\..........\keycatch.vf
..................\..........\keycatch_summary.html
..................\..........\keypad_decoder.prj
..................\..........\keypad_decoder.spl
..................\..........\keypad_decoder.stx
..................\..........\keypad_decoder.sym
..................\..........\keypad_decoder.vhd
..................\..........\keypad_decoder.xst
..................\..........\keypad_decoder_vhdl.prj
..................\..........\pepExtractor.prj
..................\..........\prjname.lso
..................\..........\xst
..................\..........\...\projnav.tmp
..................\..........\...\work
..................\..........\...\....\hdllib.ref
..................\..........\...\....\hdpdeps.ref
..................\..........\...\....\sub00
..................\..........\...\....\.....\vhpl00.vho
..................\..........\...\....\.....\vhpl01.vho
..................\..........\...\....\.....\vhpl02.vho
..................\..........\...\....\.....\vhpl03.vho
..................\..........\...\....\.....\vhpl04.vho
..................\..........\...\....\.....\vhpl05.vho
..................\..........\_xmsgs
..................\..........\......\xst.xmsgs
..................\..........\__ISE_repository_calculator.ise_.lock