We will attempt to take your preferred dates into account, but for organizational reasons it is not always possible to do so. You can of course mention your proposed dates in your motivation letter, and we will consider them on a case-by-case basis.
If you upload your application as a Word file, it may lead to changes in formatting. This can happen if you own a different version of Word than we do. With a PDF, all formatting, pictures, texts, etc. are fixed and will not be moved, no matter which PDF version is used.