Desenvolver um Software

I need a software, an executable file with the folders for the content and the settings file, which must be easily editable, or directly editable from the software itself. The software is an Audit Work Presentation. Very simple, there must be a Splash screen, when open (image attached), with the information about the project, with a "Continue" button to open the Presentation. In the presentation, there must be a Menu, with 6 items wich make three different actions: 1. "Legislação", "Escopo" and "Premissas" open a PDF Reader. In the screen there must be a selector, to change the PDF in the screen. It must be easy to edit the selector contents and which PDF they point to. See it in the image. 2. "Valores Apurados" opens an "embed" excel screen. Again, a selector to choose which Excel Worksheet appears. The Worksheet needs to appear and be interactive with all its non-hidden Sheets. Just like the excel for the web, but if possible, hidding the tools menu. Just showing the content, just like in the image attached. In this Excel file we select the month, year and factory to get the results from the database sheet of the Worksheet. The main objective of the whole Project is to present these Excel Data in a fine-looking executable. For this, there is plenty of Excel API and plugins, and here I need the best solution from the software designer. To find the best way and to fit it in the presentation. See the images. 3. "Pericias - Book" - opens a simple menu, which must open the folder where the documents used in the work are. Simple, it must be easily editable for naming and choosing the folders they point to. 4. "Metodologia" - opens an image reader, to show the images with the workflow. Must have arrows, selector or anything to switch between the files. About the general Layout and features: 1. Possibility to change the logo (just need to have the logo properly placed and I can change the image in the folder) - The same thing for the right-top image. And, as seen in the image, the layout is important - The image must have the gradient transparent effect. I can do this myself to the images I decide to put there, but it would be nice if it is already programmed and I just have to change the image. (Higher cost here not interesting) 2. Possibility to change the Splash Screen Info. As the splash screen varies in content, there must be 2 simple text box with 2 colums each, to fill it as needed. 3. Possibility to change the Theme. The Blue theme is shown in the images. I want that the change theme option changes the splash and the top and bottom lines in the presentation. As the splash is a Gradient in the layout showed, it would be necessary to set the gradient automatically when chosing the color, or it could load the gradient as an image. The color can also be set by placing a solid color square in the theme folder, which will be identified to fill the presentation with this color. Or a simple function to a global color selector. Minor effects: It is interesting to have some small effects to make the presentation menu alive, like the square changing color when selecting the menu, or a "loading" gif when loading pages. General Purpose and security: The Presentation will be delivered to the client. He may not be able to access any of the functions or excel files (not able to open it directly with excel or see the formulas and hidden content sheets - if possible, please describe options) The functions to edit the theme, texts, menus, selectors and target files directly from the software (with some kind of hidden access to the project developers) - must not be possible to access by the final client. For this, some kind of internal config must disable these functions after we are done with the editing. This function to edit directly from the software is not mandatory, as most of things won't change from project to project. The increase of cost may discourage asking for this.