Which spreadsheet programs and file types work?
Excel (.xlsx, .xlsm, .xls), LibreOffice and OpenOffice (.ods), Google Sheets downloads, and CSV, TSV or text files in UTF-8. A ZIP of images can go with the file.
- 1 min read
- Updated October 13, 2026
Any program that can save .xlsx, .xlsm, .xls, .ods, .csv, .tsv or .txt: Excel, LibreOffice, OpenOffice, Google Sheets (File → Download), Apple Numbers (File → Export To → Excel or CSV) and the exports of databases and other systems.
CSV files must be UTF-8 (or UTF-16 with a byte order mark). Not supported: .xlsb, Numbers files themselves, password-protected workbooks, and web pages saved as spreadsheets. Workbooks are read from their first worksheet.
Details and the exact messages: supported file formats.
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