Plain .docx files built by code, not saved out of a design tool: tables and paragraph styles only, so Word, Google Docs, LibreOffice and Pages all open them with the margins and the type intact. Open the pages to see every sheet of paper before you download.
A resume the parser can actually read: no tables, no text boxes, nothing in the header, standard section names. Plus an entry-level version, a cover letter and a reference list. Plain .docx for Word, Google Docs, LibreOffice and Pages.
Four .docx documents that print the way they look: an invoice with VAT and payment terms, a quote that expires, a credit note that references the invoice it cancels, and a statement with the debt split by age. No macros, no Word fields that come out as zero somewhere else.
Most invoice templates are a design someone laid out by hand: text boxes positioned by eye, a logo anchored to nothing, a total in a field that recalculates on open. Move one line and the layout slides. Open it anywhere but Word and it falls apart quietly — which you find out after the client has it.
Ours are generated by a script, which is why they behave: every block is a table with stated column widths, every piece of type is a named paragraph style, nothing floats, and the build converts the file to PDF and reads the pages back to check the words and the money are still on them.