Dear Radhika,
Thanks for asking about our downloads.

To give a bit of explanation, here's the difference between the types of downloads available from our forum:
Little Reader opens, imports and exports only file types that have the .CAT (Categories) and the .PL (Playlists) extension. You cannot play these without the Little Reader software. In this same light, Little Math downloads (.LMTP) cannot be opened without Little Math.
1.) Infant Stimulation Cards - These are in .DOC (which can be opened by Mircosoft Word) or .PDF (which can be opened by Adobe Acrobat Reader). Once opened, they need to be printed out to be used. They cannot be imported into Little Reader.
2.) Flash Card Printouts - Again, these are in .DOC (which can be opened by Mircosoft Word) or .PDF (which can be opened by Adobe Acrobat Reader). Once opened, they need to be printed out to be used. They cannot be imported into Little Reader.
3.) PowerPoint Slideshows - These are in .PPT (which can be opened using Microsoft PowerPoint). Once opened, you may show your child the presentation by using it as a standard PowerPoint Slideshow on your computer. They cannot be opened by Little Reader.
4.) Little Reader Library Files - These can only be opened if you have the Little Reader software installed. Once downloaded, they need to be imported into Little Reader, and once you finish importing, you will be able to play them from your computer, or print them out using Little Reader's print function.
Other file extensions such as .docx, .pptx, .ppsx are files created using Microsoft Office 2007. These files can only be opened if your Microsoft Office System is 2007 or above.
I hope this information helps!
Cheers,
Lappy