The Kobo supports the open EPUB format for its e-books. This is a standard format that many publishers use to produce e-books. To manage digital rights on these files, many companies use Adobe Digital Editions software.
To download Ebook Central and EBSCO books from the MSU Libraries to the Kobo, you must have Adobe Digital Editions (ADE) loaded on your PC or Mac computer. The download is a two-step process: first, you download your book to Adobe Digital Editions, and then you move the file into your Kobo. To do this, simply connect your Kobo to the computer with Adobe Digital Editions, and it will show up as a device in your library. Drag and drop the book you want into your Kobo.
http://www.adobe.com/products/digitaleditions/ is the link to the free Adobe Digital Editions Software.
For e-books that can only be downloaded by chapter as a .pdf file, you can download them through Adobe Digital Editions. You can also add non-protected files to your Kobo directly following these directions: https://help.kobo.com/hc/en-us/articles/360024775093-Add-non-protected-PDF-and-ePub-files-to-your-Kobo-eReader-using-your-computer.