File Extension ODS
File extension ODS is most commonly associated with an OpenDocument Format spreadsheet, typically created in either OpenOffice.org or StarOffice Calc. Though less common, the ODS file extension may also denote a Microsoft Outlook Express 5 mailbox which is used to store saved E-Mails. This type of ODS file is similar to the more common DBX file format as used by other versions of Outlook Express.
ODS spreadsheet files contain data stored in the XML-based OpenDocument format, an open source format designed to allow the seamless interchange of files between different applications. Like similar spreadsheet file formats such as XLS or WKS, ODS files contain data stored in rows and columns. Individual data items stored in cells can be uniquely referenced using the letter of the column and the number of the row it is stored in, hence giving a cell reference such as B5 or F2. ODS files primarily contain numeric data which can be used to perform calculations using formulas, or to create charts and graphs which update dynamically to reflect changes to the source data. ODS files can also contain formatted text and images which can be used to improve the presentation of numeric data.
ODS files which relate to Microsoft Outlook Express store the E-Mail contents of a user's mailbox. Only Outlook Express 5 uses the ODS file extension - Other versions use DBX, though both formats store mailbox data in a similar way.
ODS spreadsheets can be opened using any OpenDocument compatible application, and are native to both OpenOffice.org Calc and StarOffice Calc, though can also be opened using Microsoft Excel with the OpenXML/ODF Translator add-in. OpenOffice.org is a free open-source suite of applications and is available on Windows, Mac and Linux platforms. ODS files relating to Microsoft Outlook Express can only be opened using version 5.