Supported Formats
ASPxSpreadsheet supports the following file formats to import and export data.
XLSX
Microsoft Office Open XML format - the default file format starting with Microsoft Excel 2007.
XLSM
Microsoft Office Open XML macro-enabled format (limited support - macros cannot be executed or modified).
XLSB
Microsoft Excel 2007-2010 binary file format (BIFF12).
XLS
Microsoft Excel 97-2003 binary file format.
XLTX
Microsoft Office Open XML template file.
XLTM
Microsoft Office Open XML macro-enabled template file (limited support - macros cannot be executed or modified).
XLT
Microsoft Excel 97-2003 template file.
CSV
Comma Separated Values - the plain text format that uses commas as separators between cell values.
TXT
Tab Delimited Text - the plain text format that uses tab characters as separators between cell values.
PDF (export only)
Portable Document Format.
HTML (export only)
Web Page.