(SQL Server) XLSX Convert Sheet to CSV

Open an Excel spreadsheet (.xlsx) and loads a sheet into a CSV object.

Note: This example requires Chilkat v11.3.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    -- .xlsx files are Zip archives
    DECLARE @zip int
    EXEC @hr = sp_OACreate 'Chilkat.Zip', @zip OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OAMethod @zip, 'OpenZip', @success OUT, 'qa_data/excel/fakeCompanies.xlsx'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        RETURN
      END

    DECLARE @csv int
    EXEC @hr = sp_OACreate 'Chilkat.Csv', @csv OUT

    DECLARE @sheetNames int
    EXEC @hr = sp_OACreate 'Chilkat.StringTable', @sheetNames OUT

    EXEC sp_OAMethod @csv, 'XlsxGetSheets', @success OUT, @zip, @sheetNames
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @csv, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        EXEC @hr = sp_OADestroy @csv
        EXEC @hr = sp_OADestroy @sheetNames
        RETURN
      END

    EXEC sp_OAGetProperty @sheetNames, 'Count', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN

        PRINT 'There are no sheets in the .xlsx'
        EXEC @hr = sp_OADestroy @zip
        EXEC @hr = sp_OADestroy @csv
        EXEC @hr = sp_OADestroy @sheetNames
        RETURN
      END

    -- Get the name of the 1st sheet.
    DECLARE @sheetName nvarchar(4000)
    EXEC sp_OAMethod @sheetNames, 'StringAt', @sheetName OUT, 0

    -- Load the 1st sheet into the CSV.
    -- We could've also loaded the 1st sheet by passing an empty string for the sheet name.
    EXEC sp_OAMethod @csv, 'XlsxLoadSheet', @success OUT, @zip, @sheetName
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        EXEC @hr = sp_OADestroy @csv
        EXEC @hr = sp_OADestroy @sheetNames
        RETURN
      END

    -- The Chilkat CSV API can now be used to read, modify, or insert cells.
    -- ...
    -- ...

    DECLARE @csvStr nvarchar(4000)
    EXEC sp_OAMethod @csv, 'SaveToString', @csvStr OUT

    PRINT @csvStr

    -- Sample output:
    -- CompanyName,Address,City,State,Zip,Phone
    -- Acme Innovations LLC,7428 Westbrook Blvd,Oak Bend,IL,60514,630-555-2398
    -- BlueHorizon Data Systems,1850 Crestline Park Suite 210,Rivergate,CA,92814,714-555-8821
    -- Pinnacle Manufacturing Corp,3912 Industrial Loop,Maple Ridge,TX,77301,281-555-4477
    -- Evergreen Analytics Inc,1250 Highland Terrace,Stonefield,WA,98290,425-555-9914
    -- NovaTech Solutions Group,578 Marketview Drive,Clearwater,FL,33760,727-555-6032

    -- Save to a .csv file.
    EXEC sp_OAMethod @csv, 'SaveFile2', @success OUT, 'c:/temp/qa_output/fakeCompanies.csv', 'utf-8'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @csv, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        EXEC @hr = sp_OADestroy @csv
        EXEC @hr = sp_OADestroy @sheetNames
        RETURN
      END

    EXEC @hr = sp_OADestroy @zip
    EXEC @hr = sp_OADestroy @csv
    EXEC @hr = sp_OADestroy @sheetNames


END
GO