Databases :: Reading And Writing MS Excel (2007) Files?

Mar 4, 2011

Want to create a web based application for reading and writing excel files.

Issue :

1. Want to upload an excel file and store it some location.
2. Read data from excel file, performing some sorting and filtering
3. Write filtered data to new excel file.

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Databases :: Reading Data From Excel 2007?

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I am attempting to read data from an uploaded spreadsheet using ACE.OLEDB. The code, which is running fine on dev and test machines for XL2003/2007 reports "Exernal table is not in the expected format" error on connecting on the production server for XL2007 only.The code is

Dim connectionString As String = "provider=Microsoft.Ace.OLEDB.12.0;" _ & "Data Source='" & ImportData.FullName & "';Extended Properties=Excel 12.0;" LogWebActivity.LogThis("Entering POPSUKD, ConStr=" & connectionString, LogWebActivity.LogDetailLevel.DetailAndData) Dim con As New System.Data.OleDb.OleDbConnection(connectionString) LogWebActivity.LogThis("Dimmed con", LogWebActivity.LogDetailLevel.Debugging) Try Dim cmdSelect As New System.Data.OleDb.OleDbCommand("SELECT * FROM [" & WorksheetName & "$]", con) Dim adapter As New System.Data.OleDb.OleDbDataAdapter(cmdSelect) Dim dS As New Data.DataSet LogWebActivity.LogThis(cmdSelect.CommandText, LogWebActivity.LogDetailLevel.Debugging) con.Open() LogWebActivity.LogThis("Opened Connection", LogWebActivity.LogDetailLevel.Debugging) adapter.Fill(dS, WorksheetName) LogWebActivity.LogThis("Filled DataAdapter", LogWebActivity.LogDetailLevel.Debugging) _SKUS = dS.Tables(WorksheetName) LogWebActivity.LogThis("Set SKUS", LogWebActivity.LogDetailLevel.Debugging)

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I am creating an site where a user uploads an excel file to check if any of the records exist in a database. Then they are returned an excel file with only the records that are NOT in the database.
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if (fileUpload1.PostedFile.FileName.EndsWith(".xls") || fileUpload1.PostedFile.FileName.EndsWith(".XLS"))
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Sep 23, 2010

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Column A
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I'm working on a web app and need to stream various files. I can do pdfs, images, and older Office documents. However, when I try to do with 2007 documents, it breaks. Here is my code:

Response.Buffer = true;
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Response.ContentType = "application/pdf";
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case "xls":
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An invalid character was found in text content. Error processing resource 'http://DomainName/GetFile.aspx.

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