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  2. VAT identification number - Wikipedia

    en.wikipedia.org/wiki/VAT_identification_number

    A value-added tax identification number or VAT identification number (VATIN [1]) is an identifier used in many countries, including the countries of the European Union, for value-added tax purposes. In the EU, a VAT identification number can be verified online at the EU's official VIES [2] website. It confirms that the number is currently ...

  3. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel maintains 15 figures in its numbers, but they are not always accurate; mathematically, the bottom line should be the same as the top line, in 'fp-math' the step '1 + 1/9000' leads to a rounding up as the first bit of the 14 bit tail '10111000110010' of the mantissa falling off the table when adding 1 is a '1', this up-rounding is not undone when subtracting the 1 again, since there is no ...

  4. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    The Luhn algorithm or Luhn formula, also known as the "modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers.

  5. Microsoft Office XML formats - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_XML_formats

    Microsoft Office Word 2003 XML Format — WordProcessingML or WordML (.XML) Microsoft Office Excel 2002 and Excel 2003 XML Format — SpreadsheetML (.XML) Microsoft Office Visio 2003 XML Format — DataDiagramingML (.VDX, .VSX, .VTX) Microsoft Office InfoPath 2003 XML Format — XML FormTemplate (.XSN) (Compressed XML templates in a Cabinet file)

  6. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Excel 2007 formats Format Extension Description Excel Workbook .xlsx: The default Excel 2007 and later workbook format. In reality, a ZIP compressed archive with a directory structure of XML text documents. Functions as the primary replacement for the former binary .xls format, although it does not support Excel macros for security reasons.

  7. Value added tax (Switzerland) - Wikipedia

    en.wikipedia.org/wiki/Value_added_tax_(Switzerland)

    Until the end of 2017, additional VAT financing of the IV by 0.4 VAT percentage points applied and from 1 January 2018 VAT rates increased by 0.1 percentage points due to the financing of the railroad infrastructure expansion FABI. From then, the normal rate of 7.7%, the reduced rate of 2.5%, and the special rate of 3.7% applied.

  8. Tax file number - Wikipedia

    en.wikipedia.org/wiki/Tax_file_number

    At some point in time between 1972 and 1983 the format of tax file numbers changed. The earlier format was still in use in 1972, and the later format was in use by 1983. Notice of amended assessment 1969 – with tax file number T92737. Under the later format, the TFN itself was either 8 or 9 digits, with a check digit.

  9. VAT Information Exchange System - Wikipedia

    en.wikipedia.org/wiki/VAT_Information_Exchange...

    The VAT Information Exchange System (VIES) is an electronic means of transmitting information relating to VAT registration (i.e., validity of VAT numbers) of companies registered in the European Union. EU law requires that, where goods or services are procured within the EU by a VAT taxpayer, VAT must be paid only in the member state where the ...