View Replies (1)
Awful Performance of PB2025 .xlsx Export
  1. New
  2. Issue
0 Votes
  1. Markus Eckert
  2. PowerBuilder
  3. Friday, 13 February 2026 08:00 AM UTC

Hi all

We've recently upgraded to PB2025 (Solution - build 3726) and along with that to the new .Net8 based saveas XLSX dll.

It didn't take long for us to run into the return -1 issue when exporting somewhat large-ish data sets (>50k rows) in a 32 bit application. We then tried a workaround, exporting the data in chunks (30k rows per file in a regular 32 bit application, 100k rows in a 4GB patched 32 bit application)

Now that kind of works (even if it's a clear downgrade in terms of functionality) but what's even worse is the performance of the new XLSX export.

I've compared exporting around 200k rows in different builds.

PB 2025 32 bit unpatched split into 7 chunks of max 30k rows 381 seconds
PB 2025 32 bit with 4GB patch split into 3 chunks of max 100k rows 364 seconds
PB 2025 64 bit single file 280 seconds
PB 2022 32 bit single file 36 seconds

So not only does the new Appeon.PowerBuilder.DataWindow.Excel12.dll run into serious memory issues in a 32 bit application, it's also up to 10x slower than the old solution!

As a result I have two questions:

  1. To Appeon: Are there any plans to improve the performance of .XLSX Exports in PB2025 R2
  2. To the Community: Does anyone have an alternative solution to create large XLSX files from PB 2025

Regards,
Markus

2022 R3 Vulnerability on error response Reg:DATAWINDOW JSON using ImportJSON
Who is viewing this page
Tomáš Podzimek
Responses (1)
  1. Likes
  2. Latest
  3. Oldest

Find Questions by Tag

.EXE .NET 6.0 .NET Assembly .NET Core 3.1 .NET Core Framework .NET DataStore .NET Std Framework 32-bit 64-bit ADO.NET AEM AI Algorithm Amazon AWS Android Apache API APK App Store App Store (Apple) Appeon Workspace Appeon Xcelerator Plug-in Architecture Array ASE Asynchronous Methods Authentication AutoBuild AutoCompiler Automated Testing Automation AutoScript Azure Barcode Base64 Batch BigData BLOB Branch & Merge Browser Bug Build Button C# C# Class Importer C# Editor C# Model generator Calendar Camera Certificate Chrome Citrix Class Client Client/Server Cloud Cluster Collection COM Command Line Compiler Compression Computed Field Configuration Controls Cookies Cordova Crash Cross-Platform Crosstab CSharpAssembly CSharpObject CSS CSV Cursor Data Database Database Driver Database Painter Database Profile Database Provider DataObject DataSource DataStore DataStore (C#) DataStore (PS) DataType DataWindow DATE DATETIME DB2 Debug Debugger Debugging Deployment Design DLL DO-WHILE Dockable Docker Documentation DOUBLE Download DPI DragDrop Edge Edit Style Editor Elevate Conference Email Embedded SQL Emulator Encoding Encryption Enhancement Request Entity Entity Framework ERP Error Event Event Handler Event Handling Excel Exception Export Expression External Functions F# Field File File Access Filter Firefox Firewall Font FOR-NEXT Foreground Format Function Garbage Collection GeoLocation Git Graph HANA Hash Header HTML/5 HTTP/S HTTPClient Icon IDE Identity IIS IMAPI Import InfoMaker Inheritance Installation Integer IntelliSense Interface Internet Internet Explorer iOS IPA iPad iPhone IWA J# Java JavaScript JBoss JDBC JOIN JSON JSONGenerator JSONParser Kestrel Label Lambda Large File LDAP Library License LINQ Linux OS Load Balancing Localization Localized PBVM Log In Log Out Logging LONG LONGLONG macOS MAPI Maps MDI Memory Memory Leak Menu Merge MessageBox Messagging Method Migration MIME TYPE Mobile Model ModelStore ModelStore (C#) MSOLEDBSQL Multi Threading MVC MySQL n-Tier Namespace NativePDF Nube NVO OAuth ODATA ODBC Office Offline OLE OLEDB Online Open Source OpenAPI OpenSSL Oracle OrcaScript Other Outlook Output Package Parameter Patch PayPal PB Classic PB Native PB.NET PBC PBD PBDOM PBG PBJVM PBL PBNI PBORCA PBVM PBX PDF Performance Permission PFC Picture Pipeline Play Store (Google) Plugin Popup Port POST PostgreSQL PowerBuilder PowerBuilder (Appeon) PowerBuilder (SAP) PowerBuilder Compiler PowerBuilder Runtime PowerClient PowerScript (PS) PowerScript IDE PowerScript Migrator PowerServer PowerServer Mobile PowerServer Toolkit PowerServer Web PowerServerLabel Print Properties Proxy Publish PULL PUSH Query Regression Release Renew Resize Response REST Retrieve RibbonBar RibbonBar Builder RibbonView Rich Text Roadmap RPC Runtime Packager SaaS Scaffolding Script SDI SDK Security Server Service Session Single Sign-on Size SMTP SMTPClient SnapDevelop SOAP Solution Sort Source Code Speech Recognition SQL SQL Anywhere SQL Server SqlBuilder SqlExecutor SQLite SqlModelMapper Storage Stored Procedure Subscription SVN Swagger Syntax TabbedBar TabbedView Tablet TabPage Target TE Control Testing Text TFS Theme TIME Timer TLS/SSL Tomcat TortoiseGit TortoiseSVN Transaction Transparency Trial Trigger TRY-CATCH TX Control Type UI ULONG UltraLite Uninstall Unit Test Unit Testing UNIX OS Update Upgrade Upload URL User Center User Object UWP Validation VARCHAR Variable Versioning Visual Studio Visual Studio Code VM Voice Warning WCF Web API Web Extensions Web Service WebBrowser WebForms WebLogic WebSphere WildFly WinAPI Window Windows OS WinForms Wizard Workgroup Workspace WPF XCODE XHTML XML Zoom
✖

Helpful?

If a reply or comment is helpful for you, please don’t hesitate to click the Helpful button. This action is further confirmation of their invaluable contribution to the Appeon Community.