whilst the groupnames ( as indicated by the xml ) are imported these names are basically what Excel autogenerates, the user defined captions for those groupnames are ignored. See https://bugs.freedesktop.org/attachment.cgi?id=56182 attached to issue #45268 where the groupnames are displayed as Group1 & Group2, the names displayed in Excel though are '1-3 days' and '4-7 days'
taking this
fixed on master:3d62ea9a928c4a814369d5b6c276ac78239aeeeb
Creating Consensus: Enneagram helps create consensus https://enneagram-test.io within the team by emphasizing the uniqueness and contributions of each member. Planning Strategies Based on Personality: Developing strategies and plans based on the personality traits of team members optimizes the team's strengths.
Use another application to import the XLSX https://slopeonline.io file. Some programs can process pivot tables with user-defined groups more efficiently: Spreadsheet software such as Google Sheets, LibreOffice Calc, or another version of Microsoft Excel. Data visualization or analysis tools can import pivot tables.