Are there any program? like word, excel, power point etc. I need these programs.
Yes. There are the basic microsoft office programs like all those you mentioned above. Keep in mind the other programs like access that are a part of the MS Office family for windows are not available for mac. For those situations you may run a virtual machine on your mac. Other programs in case you're interested like SPSS are also not available for mac but as mentioned previosly you may run them through a virtual machine.