Friends, there is a channel on youtube which hosts a collection of more than 1000 videos on MS-Excel (tips and tricks). Through such videos one can easily learn basic and advanced features of excel gradually overtime.
following is the link to follow such channel -- https://www.youtube.com/user/ExcelIsFun
Alternatively you may download excel workbooks from https://flightline.highline.edu/mgirvin/excelisfun.htm . They are self explanatory and very good for practice.
I am sure everyone will gain atleast something from it.
Thanks!