Description: The excel file contains some changes to 16-thousand rows and several columns, which affects the performance of navigation, copying to buffer, deleting and so on. Steps to Reproduce: 1. Open file in attachment 2. Try to do copy, paste, delete, navigate operation and control speed Actual Results: Almost all operation doing slow Expected Results: All doing fast Reproducible: Always User Profile Reset: No Additional Info: Version: 24.8.2.1 (X86_64) / LibreOffice Community Build ID: 0f794b6e29741098670a3b95d60478a65d05ef13 CPU threads: 20; OS: Windows 11 X86_64 (10.0 build 22631); UI render: Skia/Raster; VCL: win Locale: en-GB (en_GB); UI: en-GB Calc: CL threaded
Created attachment 197201 [details] Excel file
Created attachment 197211 [details] Sample file after cleaning all columns beyond the data. Seems there is something on the columns beyond data, possibly a direct format. After selecting all columns beyond data, the file works fine.
When opening this file in debug version of LibreOffice, I am getting: warn:vcl:9005:9005:vcl/source/window/dndeventdispatcher.cxx:185: rejecting drag over due to missing listeners. warn:vcl:9005:9005:vcl/source/window/dndeventdispatcher.cxx:185: rejecting drag over due to missing listeners. warn:vcl:9005:9005:vcl/source/window/dndeventdispatcher.cxx:185: rejecting drag over due to missing listeners. warn:vcl:9005:9005:vcl/source/window/dndeventdispatcher.cxx:185: rejecting drag over due to missing listeners. warn:xmloff:9005:9005:sax/source/fastparser/fastparser.cxx:1233: unknown attribute revIDLastSave=0 warn:xmloff:9005:9005:sax/source/fastparser/fastparser.cxx:1233: unknown attribute documentId=13_ncr:1_{95DA07AC-1979-4B5D-A46B-A0EADC0187E9} warn:xmloff:9005:9062:sax/source/fastparser/fastparser.cxx:1233: unknown attribute defaultSlicerStyle=SlicerStyleLight1 warn:xmloff:9005:9062:sax/source/fastparser/fastparser.cxx:1233: unknown attribute defaultTimelineStyle=TimeSlicerStyleLight1 warn:oox:9005:9066:oox/source/helper/progressbar.cxx:67: ProgressBar::setPosition - invalid position warn:oox:9005:9066:oox/source/helper/progressbar.cxx:67: ProgressBar::setPosition - invalid position warn:oox:9005:9066:oox/source/helper/progressbar.cxx:67: ProgressBar::setPosition - invalid position Version: 25.8.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: f24bb80e45c1693db33b47ee695436b2c8d5fbcd CPU threads: 16; OS: Linux 6.8; UI render: default; VCL: gtk3 Locale: ro-RO (ro_RO.UTF-8); UI: en-US Calc: threaded
I only reproduce a lag of some seconds when copying. Deleting and pasting are instant. I don't know what navigation means in this case, but scrolling works fine. The lag in copying appears together with the addition of support for 16,384 columns (in 7.5), so that would be in line with comment 2. Arch Linux 64-bit Version: 26.2.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 070732f622ac54f940f41d7d80883a2385725111 CPU threads: 8; OS: Linux 6.15; UI render: default; VCL: gtk3 Locale: fi-FI (fi_FI.UTF-8); UI: en-US Calc: CL threaded Built on 25 June 2025