Everyday applications—ranging from budgeting tools to health trackers—rely on a handful of document families: PDF for immutable records, DOCX for editable text, CSV/Excel for tabular data, and image formats for visual verification. Across the last five years, the aggregate volume of these files in consumer apps has risen roughly 30 %, driven largely by mobile cloud sync and built‑in editors.
At the same time, newer formats such as JSON for configuration and markdown for lightweight note‑taking are creeping into the same spaces, often hidden behind APIs rather than visible to end users. This shift hints at a move toward machine‑readable interchange, but it also raises questions about data privacy, version control, and the durability of newer standards compared with legacy formats.