But don't worry as I said earlier.There are lots of free office suits available which will meet your requirements with a fractional cost compared to Microsoft office or at no costs at all.
Among the free office suits, the best one probably is the openoffice, developed by Oracle.Its absolutely a free software.It's a multiplatform(Windows, Linux, Mac).office suite which is compatible with most of the office suits like MS office.It includes writer, impress, math, draw, calculation, and base applications, which are similar to word processing, presentation, spreadsheet.Then there is StarOffice developed by Sun Microsystems.It's also comparable to Microsoft office and it runs on Windows, Mac and Linux.StarOffice was free at the starting of it's journey, it's not free now but it's rice is much less than Microsoft Office.Then there is IBM Lotus Symphony. It's a free software.This suite contains Symphony documents, Symphony presentation, and symphony spreadsheets.All three of the above are multilingual.
You can also use online office softwares like Googledocs, Zoho, Thinkfree.They are all free softwares.