XLSX
GIF files
XLSX (Office Open XML spreadsheet) is the modern file format for Excel spreadsheets. XLSX files store tabular data, formulas, and formatting. They offer improved data integration, enhanced security, and support for larger datasets compared to XLS.
GIF (Graphics Interchange Format) is an image format known for its support of animations and transparency. GIF files store multiple images in a sequence, creating short animations. They are commonly used for simple web animations and avatars.
More GIF conversion tools available