I want to view and edit Office files (doc, docx, ppt, pptx, xls, xlsx) on my Windows 8 HP Tablet.
Is there a free opensource option available that lets me do so? Or any app?
Libre office will let you do this.
LibreOffice can open and save documents in the Microsoft Office file formats, including Microsoft Office Open XML formats.
1 Opening a Microsoft Office File 2 Saving as a Microsoft Office File 3 Saving Documents by Default in Microsoft Office Formats 4 Converting Many Microsoft Office Files into OpenDocument Format 5 Macros in Microsoft Office and LibreOffice 5.1 You can choose to preserve or delete VBA macros
Opening a Microsoft Office File
Choose File - Open. Select a Microsoft Office file in the LibreOffice file open dialog.
MS Office file... ...will open in LibreOffice module MS Word, *.doc, *.docx LibreOffice Writer MS Excel, *.xls, *.xlsx LibreOffice Calc MS PowerPoint, *.ppt, *.pps, *.pptx LibreOffice Impress Saving as a Microsoft Office File
Choose File - Save As. In the File type box, select a Microsoft Office file format.
Saving Documents by Default in Microsoft Office Formats
Choose Tools - Options - Load/Save - General. In the Default file format and ODF settings area, first select a document type, then select the file type for saving.
From now on, if you save a document, the File type will be set according to your choice. Of course, you still can select another file type in the file save dialog. Converting Many Microsoft Office Files into OpenDocument Format
The Document Converter Wizard will copy and convert all Microsoft Office files in a folder into LibreOffice documents in the OpenDocument file format. You can specify the folder to be read, and the folder where the converted files are to be saved.
Choose File - Wizards - Document Converter to start the wizard.
Macros in Microsoft Office and LibreOffice
With a few exceptions, Microsoft Office and LibreOffice cannot run the same macro code. Microsoft Office uses VBA (Visual Basic for Applications) code, and LibreOffice uses Basic code based on the LibreOffice API (Application Program Interface) environment. Although the programming language is the same, the objects and methods are different. Note.png The most recent versions of LibreOffice can run some Excel Visual Basic scripts if you enable this feature at LibreOffice - PreferencesTools - Options - Load/Save - VBA Properties.
If you use macros in one of the applications and want to use the same functionality in the other application, you must edit the macros. LibreOffice can load the macros that are contained within Microsoft Office files and you can then view and edit the macro code in the LibreOffice Basic IDE editor. You can choose to preserve or delete VBA macros
Open a Microsoft Office document that contains VBA macro code. Change only the normal contents (text, cells, graphics), and do not edit the macros. Save the document as a Microsoft Office file type. Open the file in Microsoft Office, and the VBA macros will run as before.
You may delete the VBA macros from the Microsoft Office file on loading or on saving.