Thank you for asking that question, Alex.
filters-calc.odt (Writer version of filter.calc)
filters-calc.ods (Calc version of filter.calc) (added 2015-11-18)
(filter.calc is hand-extracted from calc.xcd)
:~$ /opt/libreoffice5.0/program/soffice.bin --version
LibreOffice 5.0.0.5 437e4abdf9e72fd0a6e6f8697a0e659bc77f9b10
:~$ cat filter.calc | wc -l
40
Obtained from /opt/libreoffice5.0/share/registry/calc.xcd; Debian 6.0:
:~$ cat filter.calc | sort
"Apple Numbers 2" application/x-iwork-numbers-sffnumbers Extensions:numbers
"BeagleWorks/WordPerfect Works v1 Spreadsheet" Extensions:-
"ClarisResolve Document" application/clarisworks Extensions:cwk
"ClarisWorks/AppleWorks Spreadsheet" application/clarisworks Extensions:cwk
"dBase" Extensions:dbf
"DIF (Data Interchange Format)" Extensions:dif
"GreatWorks Spreadsheet" Extensions:-
"HTML Table" text/html Extensions:xls
"HTML" text/html Extensions:html htm
"Lotus (Lotus 1-2-3)" application/vnd.lotus-1-2-3 Extensions:wk1 wks 123
"Microsoft Excel 2007-2013 XML" application/vnd.openxmlformats-officedocument.spreadsheetml.sheet Extensions:xlsx xlsm
"Microsoft Excel 2007-2013 XML Template" application/vnd.openxmlformats-officedocument.spreadsheetml.template Extensions:xltm xltx
"Microsoft Excel 2007 Binary" Extensions:xlsb
"Microsoft Works Document" Extensions:wks wdb
"Microsoft Works for Mac Spreadsheet (v1 - v4)" application/vnd.ms-works Extensions:wps
"MS Excel 4.0" application/vnd.ms-excel Extensions:xls xlw xlc xlm
"MS Excel 4.0 Vorlage/Template" application/vnd.ms-excel Extensions:xlt
"MS Excel 5.0/95" application/vnd.ms-excel Extensions:xls xlc xlm xlw
"MS Excel 5.0/95 Vorlage/Template" application/vnd.ms-excel Extensions:xlt
"MS Excel 95" application/vnd.ms-excel Extensions:xls xlc xlm xlw
"MS Excel 95 Vorlage/Template" application/vnd.ms-excel Extensions:xlt
"MS Excel 97" application/vnd.ms-excel Extensions:xls xlc xlm xlw xlk
"MS Excel 97 Vorlage/Template" application/vnd.ms-excel Extensions:xlt
"ODF Spreadsheet (Calc 8)" application/vnd.oasis.opendocument.spreadsheet Extensions:ods
"ODF Spreadsheet Template (Calc 8 Template)" application/vnd.oasis.opendocument.spreadsheet-template Extensions:ots
"Office Open XML Spreadsheet" application/vnd.openxmlformats-officedocument.spreadsheetml.sheet Extensions:xlsx xlsm
"Office Open XML Spreadsheet Template" application/vnd.openxmlformats-officedocument.spreadsheetml.template Extensions:xltx xltm
"OpenDocument Spreadsheet Flat XML" Extensions:fods ods xml
"OpenOffice.org 1.0 Spreadsheet Template" Extensions:
"PDF - Portable Document Format" application/pdf Extensions:pdf
"Quattro Pro 6.0" Extensions:wb2
"QuattroPro Document" Extensions:wq1 wq2
"Rich Text Format" application/rtf Extensions:rtf
"StarOffice XML (OpenOffice.org 1.0 Spreadsheet) (Calc 6.0)" application/vnd.sun.xml.calc Extensions:sxc
"StarOffice XML Template (OpenOffice.org 1.0 Spreadsheet Template) (Calc 6.0 Template)" application/vnd.sun.xml.calc.template Extensions:stc
"SYLK" text/spreadsheet Extensions:slk sylk
"Text CSV (StarCalc)" Extensions:csv
"Text" text/plain Extensions:csv tsv tab txt
"Wingz for Mac Document" Extensions:-
"WPS Lotus Document" Extensions:wk1 wk3
If this helps then please show you like it with an uptick (∧)