I would like to know if it is possible to Replace a SPACE between two words...say for example Bobby Bansal....so there is a space between Bobby(SPACE)Bansal...with a character/s.....for example.....BobbyXYZBansal....I replaced this space with XYZ....please help....Thank you.

Yes. With the document open, press CTRL + H to launch your find and replace window. Type the two words you want changed exactly as they appear in your text. In the replace with field, type the one word you want to replace those two words. Click replace all.