Completed
Last Updated: 05 Nov 2019 14:58 by ADMIN
Release LIB 2019.3.1111 (11/11/2019)
The exception is thrown when importing a document that contains a not supported BuiltInNumberFormat.
Completed
Last Updated: 16 Oct 2019 12:50 by ADMIN
Release R3 2019 SP1
While importing the arguments of the data validation rule, the formula is treated as text and its separators are replaced with the list separator defined in the current culture. This leads to an invalid formula treated as a list of strings.
Approved
Last Updated: 02 Oct 2019 12:37 by ADMIN
Created by: shashidhar
Comments: 0
Category: SpreadProcessing
Type: Bug Report
1

Filter Selection dialog appears on the screen. 

Workaround: Open the file with Excel and save it as a new document.

Approved
Last Updated: 06 Aug 2019 12:51 by ADMIN
Created by: Brittany
Comments: 0
Category: SpreadProcessing
Type: Bug Report
2
It takes ~42 seconds to remove each 100th row from a document with 50000 rows and 100 columns.
Completed
Last Updated: 11 Jun 2019 12:46 by ADMIN
Release R2 2019 SP1
The data validation rule should have values for formula1 and formula2 elements, which define the start and end values for a range to validate between. When such values are missing, a NullReferenceException is thrown on import and the document cannot be imported.

Details:

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Model.Elements.Worksheets.DataValidationElement.CopyPropertiesToSingleArgumentContext(SingleArgumentDataValidationRuleContext context)
   at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Model.Elements.Worksheets.DataValidationElement.CopyPropertiesToDataValidationRuleContext(DataValidationRuleContextBase context)
   at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Model.Elements.Worksheets.DataValidationElement.ListRuleFactory(IXlsxWorksheetImportContext context)
   at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Model.Elements.Worksheets.DataValidationElement.OnAfterRead(IXlsxWorksheetImportContext context)
...
   at Telerik.Windows.Documents.Spreadsheet.FormatProviders.WorkbookFormatProviderBase.Import(Stream input)
Completed
Last Updated: 23 May 2019 13:14 by ADMIN
When the worksheet contains many formulas which use large ranges (e.g. covering 50000 cells) as arguments and these formulas have to be calculated, this causes OutOfMemoryException. 
Approved
Last Updated: 10 Apr 2019 14:35 by ADMIN
Exporting empty workbook without any worksheet is not allowed according to the specification and such documents cannot be opened in Excel. Ensure the customers cannot create such documents using the API of SpreadProcessing.
Approved
Last Updated: 18 Mar 2019 14:01 by ADMIN
Created by: Stephen
Comments: 0
Category: SpreadProcessing
Type: Bug Report
0
If the lookup_value parameter and lookup_vector parameters refer cells containing text values, the function returns a Not available error ("#N/A").
Completed
Last Updated: 13 Mar 2019 12:14 by ADMIN
ArgumentException is thrown when importing documents containing empty values
Completed
Last Updated: 06 Mar 2019 07:33 by ADMIN
The value formula =Round(1.015, 2) returns 1.01 which is incorrect. Excel returns 1.02.
Completed
Last Updated: 11 Jan 2019 12:35 by ADMIN
When a chart is inserted in a document, generated by SpreadProcessing or WordsProcessing, the chart seems to lack any bars. The reason is that some theme information is missing, which effectively makes shapes take their default color, which is transparent. The same applies for shapes inserted in any Document Processing-generated OOXML documents - docx, xlsx.

Workaround: (applicable for Excel) Manually change the theme for the document in MS Excel:
- Choose Page Layout -> Themes -> Themes dropdown -> Office.
Completed
Last Updated: 11 Dec 2018 15:22 by ADMIN
ArgumentException with clarification similar to  "'\u001f', hexadecimal value 0x1F, is an invalid character." is thrown when trying to export document containing characters which are not supported in XML document - such as some control characters like 0x00, 0x1F, 0x1B, etc. Such characters are described in the XML specification here: https://www.w3.org/TR/xml/#charsets.

Although the escaped strings are not supported (see  https://feedback.telerik.com/Project/184/Feedback/Details/190228 ), the library could prevent the exception and export the document successfully by skipping such characters.

Workaround: remove such characters before the export. Check the following StackOverflow answer for some ideas on code for replacing the characters: http://stackoverflow.com/a/14323524/259206

Fix available in R3 2018 SP1 release.
Completed
Last Updated: 19 Oct 2018 11:08 by ADMIN
ADMIN
Created by: Polya
Comments: 0
Category: SpreadProcessing
Type: Bug Report
1
Incorrect calculation of Round function returns wrong results in some cases. For example, test Microsoft Excel and Spreadsheet results of: ROUND(1.365, 2) to see the discrepancy.

Available in R3 2018 SP1 release.
Approved
Last Updated: 17 Oct 2018 12:47 by ADMIN
When the worksheet contains fraction numbers with fractional parts > 0.5 and < 0.5 and both these numbers have fraction format applied, the number with fractional part < 0.5 will have incorrect whole part.
Declined
Last Updated: 12 Oct 2018 22:22 by ADMIN
Closed as duplicate. Please, follow the item at https://feedback.telerik.com/Project/184/Feedback/Details/190249 .
Approved
Last Updated: 03 Oct 2018 15:51 by ADMIN
When the workbook contains multiple styles (e.g. 50000), the import is extremely slow. MS Excel loads this document instantaneously.
Completed
Last Updated: 01 Oct 2018 14:00 by ADMIN
When the values that were copied have formatting both on the cell and on the column, the pasted values get the formatting of the column, instead of that of the cell. The same applies to rows.
Approved
Last Updated: 21 Sep 2018 13:02 by ADMIN
When inserting cells a check is performed for data loss. This check should take into account the value property, but should not take into account properties like cell value format and data validation. 

Workaround: clear the values at the end of the worksheet before inserting cells.
worksheet.Cells[1048575, 0, 1048575, 16383].ClearDataValidationRule();
Approved
Last Updated: 13 Sep 2018 12:11 by ADMIN
Generating document which consists of merged cells in a row and some values then inserting a row on the top and then exporting the document or setting it to the RadSpreadsheet causes wrong merged cells.

If the generation is done on a workbook which is already set to the RadSpreadsheet everything is OK.

Workaround: The document can be exported and then imported again before the row is inserted.
Approved
Last Updated: 05 Sep 2018 14:44 by ADMIN
When the scale factor of a document is smaller, the borders don't seem to scale correctly when exported to PDF. They appear much thicker than they would when exported from Excel.
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