Supported Formats of Spreadsheets

A spreadsheet is a table of data organized in rows and columns. It is most frequently used to store financial information because of its ability to re-calculate the entire sheet automatically after a change to a single cell is made. The Spreadsheet Editor allows you to open, view and edit the most popular spreadsheet file formats.

While uploading or opening the file for editing, it will be converted to the Office Open XML (XLSX) format. It's done to speed up the file processing and increase the interoperability.

The following table contains the formats which can be opened for viewing and/or editing.

Formats	Description	View natively	View after conversion to OOXML	Edit natively	Edit after conversion to OOXML
CSV	Comma Separated Values A file format used to store tabular data (numbers and text) in plain-text form.		+		+
ET	WPS Spreadsheets Workbook A spreadsheet file format included in the WPS Office suite that supports charts and formulas and stores data in rows and columns of cells.		+		+
ETT	WPS Spreadsheets Template A spreadsheet template included in the WPS Office suite. ETT files are similar to ET files, storing rows and columns of data, charts, and graphs, but they are primarily used for duplicating spreadsheets with similar layouts and information.		+		+
FODS	OpenDocument Flat XML Spreadsheet An XML-based file format for saving and exchanging spreadsheets.		+		+
ODS	A file extension for spreadsheet files used by OpenOffice and StarOffice suites, an open standard for spreadsheets.		+		+
OTS	OpenDocument Spreadsheet Template An OpenDocument file format for spreadsheet templates. An OTS template contains formatting settings, styles etc. and can be used to create multiple spreadsheets with the same formatting		+		+
SXC	Sun XML Calc An XML based spreadsheet file format that belongs to OpenOffice suite, supports formulas, functions, macros and charts.		+		+
XLS	File extension for spreadsheet files created by Microsoft Excel.		+		+
XLSX	Default file extension for spreadsheet files written in Microsoft Office Excel 2007 (or later versions).	+		+
XLTM	An XLTM file is a macro-enabled spreadsheet template created by Microsoft Excel.	+		+
XLTX	Excel Open XML Spreadsheet Template Zipped, XML-based file format developed by Microsoft for spreadsheet templates. An XLTX template contains formatting settings, styles etc. and can be used to create multiple spreadsheets with the same formatting.		+		+
XML	Extensible Markup Language (XML) A file format that is used for structuring, storing and transmitting data.		+		+

The following table contains the formats in which you can download a spreadsheet from the File -> Download as menu.

Input format	Can be downloaded as
CSV	JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
ET	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
ETT	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
FODS	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
ODS	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
SXC	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
OTS	CSV, JPG, ODS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
XLS	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX
XLSM	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSX, XLTM, XLTX
XLSX	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLTM, XLTX
XLTM	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTX
XML	CSV, JPG, ODS, OTS, PDF, PDF/A, PNG, XLSM, XLSX, XLTM, XLTX

You can also refer to the conversion matrix on api.onlyoffice.com to see possibility of conversion your spreadsheets into the most known file formats.

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