c# – Varying OleDb performance?
Questions: I’m currently trying to use OleDb/JET to export SQL Server data to an Excel 2003 file. I initially coded the export in a console application, and it worked fast enough. However, runni...
Tag Archives: performance
Open XML SDK v2.0 Performance issue when deleting a first row in 20,000+ rows Excel file
Questions: Do anyone come across a performance issue when deleting a first row in a 20,000+ rows Excel file using OpenXML SDK v2.0? I am using the delete row coding suggested in the Open XML SDK docum...
excel – Bad performance after color count
Questions: I have a problem with bad performance after implementing this code into my Excel list to count the filled cells without a color in the set range: Function CountCcolor(range_data As Range, c...
performance – Why does Excel VBA run significantly faster when Outlook is closed?
Questions: so I have been noticing the VBA code I have written runs significantly faster when Outlook is closed. This is not a sporadic thing: I can run the same code 10x with Outlook open an experien...
Excel: Can using external links improve performance?
Questions: I’m wondering if there is a performance gain when using external links vs. opening a spreadsheet and copying cells (using VBA). I would imagine that Excel has to open the file just th...
c# – Microsoft Office interop performance issue
Questions: I am try to exporting datagridview data to excel file in my C# 4.0 Windows application. we used Microsoft.Office.Interop.Excel dll version 12.0.0.0. It’s works well and everything is ...
excel – Open CSV file via VBA (performance)
Questions: Obviously, this question has been asked many times. The normal procedure: Workbooks.Open (ActiveWorkbook.Path & "\Test.csv") won’t parse the CSV correctly (having many rows in one...
Is the poor performance of Excel VBA auto-instancing a myth?
Questions: The accepted wisdom is that using a construct like Dim dict As New Dictionary is poorer in performance than Dim dict As Dictionary / Set dict = New Dictionary. The explanation is that the f...
Apache POI Java Excel Performance for Large Spreadsheets
Questions: I have a spreadsheet I’m trying to read with POI (I have both xls and xlsx formats), but in this case, the problem is with the xls file. My spreadsheet has about 10,000 rows and 75 co...
java – POI performance
Questions: I am using POI in my J2EE web application to generate a workbook. However, i find that POI takes around 3 mins to create a workbook with 25K rows(with around 15 columns each). Is this a POI...
