I am not able to sign-in in Microsoft Office, and I want to install an Alternatives software where I can make my word documents, spreadsheets, presentations, etc. Is there any Microsoft Office Alternatives software present?

My Microsoft Office suite contains Microsoft Office Groove 2007, and I don’t know how to use it. I want to know why Microsoft Office Groove required is.

My Office has got corrupted, and I want to open some necessary files in my word. Is there any way to view and make word files online by using Microsoft Office Word online?

I was trying installing Microsoft office 2013 and my system encountered error 25004. I want to know how to get rid of Microsoft office error 25004?  

I want to open some word and PowerPoint files on my phone, and I don’t know whether my Tablet will support Microsoft Office. I want to know if Microsoft Office for Tablets exists.

I want to open some word and PowerPoint files on my phone and I don’t know whether my Windows phone will support Microsoft Office. I want to know if Microsoft Office for Windows exists.

I want to open some word and PowerPoint files on my phone, and I don’t know whether my Apple will support Microsoft Office. I want to know if Microsoft Office in Apple store exists.

I want to open some word and PowerPoint files on my phone, and I don’t know whether my Android will support Microsoft Office. I want to know if Microsoft Office Android app exists.

What is the use of Microsoft Office Access 2003 in the system and how to use it? As I got it in my office package, I want to know why it is required.

I want to know about Microsoft Office student as someone suggested me to get a student version as I am a student of 8th standard. I want to know what Office 365 student is?