How to edit the files inside the Computer Business Kit
Documents can be edited using Microsoft Word and Excel. Fonts, sizes, spacing and the like are not guaranteed to remain not altered if you were to use other similar Microsoft Office applications.
You can fill up and edit whatever are in the forms (like the Legalese) using Adobe Reader https://get.adobe.com/reader/. You can also edit the forms to some extent using FoxIT PDF reader. https://www.foxitsoftware.com/products/pdf-reader/ But if you want to totally edit everything (fields, design, Math equations), we recommend using Adobe Acrobat which is a paid application.
To edit the Photoshop files, we recommend at least using Adobe Photoshop Cs4.