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New Post: Input string was not in a correct format when reading cell value

Hi, Gettting "Input string was not in a correct format" exception when reading value from cell. Also tried "GetDouble()" as this cell contains formula that returns number, but the same exception is...

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New Post: Input string was not in a correct format when reading cell value

I just encountered this bug as well. I think it happens when a formula references an empty cell. Excel evaluates an empty cell as zero, but ClosedXML throws an exception.

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Created Unassigned: Style, colour, formulas when using...

i need to create some larger excel sheets using a "template" for colors, forumulas and styles.(template is attached).1st thing i do is adding the nr of needed rows...

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Commented Unassigned: System.OutOfMemoryException in v0.68.0.10, regression?...

Hello,In order to improve the speed of reading/writing of Excel files, I have recently updated ClosedXML from v0.64.0.0 to v0.68.0.10.The kind of Excel file that I deal with is a big file, embedding a...

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Patch Uploaded: #14770

S1 has uploaded a patch.Description:- Added workaround for 'XLCell.Value' crash, when Value would be a 'Percentage', e.g. "0.00%" but treated as 'Number' and cannot be parsed to double.The real fix...

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New Post: Worksheets Incompatible with Excel 2007

Hello, I am using Closed XML to generate Excel reports in VB.NET in the following way: Workbook.SaveAs("myFile.xlsx") Dim BinaryData() As Byte = File.ReadAllBytes("myFile.xlsx")...

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New Post: Excel 2013 - 2010 compatibility

Hello! I have the same problem. I also tried with native OpenXML -> SpreadsheetDocument.Open method (Stream, Boolean) see...

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Created Unassigned: Background Cell Color [8860]

.Style.Fill.SetBackgroundColor() property sets the color pattern and not the background color : public XLColor BackgroundColor{..... get { return _patternColor; }..... _patternType = value.HasValue ?...

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Created Unassigned: Excessive Memory allocation using Borders [8862]

Hi, I am creating a relatively simple spreadsheet (from a dataset/datatable) with 27 columns and around 2500 rows and while performance is much better than Excel Interop, using borders can cause memory...

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Created Unassigned: German Special Characters Problem when Exporting to Excel...

Hello,i`m sucessfully exporting a GridView into Excel but when using german special characters (ä, ü, ö, ß) they get replaced with ü in the excel file. Is there a way to fix that problem? Not...

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New Post: German Special Characters Problem when Exporting to Excel

Hello, i`m sucessfully exporting a GridView into Excel but when using german special characters (ä, ü, ö, ß) they get replaced with "& #252;" in the excel file. Is there a way to fix that problem?...

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Created Unassigned: Open XML 2.5 [8873]

Hi,if i use Open XML 2.5 the ClosedXML library not work because, i thing, is compiled with Open XML 2.0.It 'will be a new implementation of ClosedXML with Open XML 2.5 version?Thanks

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New Post: handle null date

Hello, when I export a datatable to excel if a date columns value is null then created excel file displays 1/0/1900 as the null date value. How can I ensure if the date value is null to not show...

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Created Unassigned: Cell formating - missing [8876]

I'm using Closed XML (0.68.1) to read Template document and then to generate new documents from template, but problem is that formatting of cells (Border, colors, ...) is lost after first cycle.Below...

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Created Unassigned: Evaluating Formulas with Round() [8877]

Hi,ClosedXML doesn't evaluate formulas with the Round() function.PS: Is their a list of supported / not supported functions?Greetings,Raidri

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Commented Unassigned: Evaluating Formulas with Round() [8877]

Hi,ClosedXML doesn't evaluate formulas with the Round() function.PS: Is their a list of supported / not supported functions?Greetings,RaidriComments: ** Comment from web user: Raidri ** Stack...

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Commented Unassigned: Request for the permission of type...

I am getting an error when I try to create an object XLWorkbook.Code :```var workbook = new XLWorkbook();```Message that I get :```Request for the permission of type...

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New Post: 17 MB a WB with only one WS having 29 rows and 11 columns???

Hi all, I love ClosedXML. I've used it before to create WBs containing up to 20 WSs. Data source primarily .NET DataTables. I save these WBs files to a MSSQL DB as binary data. Most of these WBs are of...

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New Comment on "Documentation"

You are Fabulous!

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New Post: Background colour of cells being lost

Hi, I am opening an existing excel file to use as a template. There is a grey background in the template surrounding a "form" in each worksheet. After setting values of certain cells within the form...

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