Description: I have been working within the LO Documentation Team updating Chapter 9 (Data Analysis) of the LO 6.2 Calc Guide. I have hit a particular problem with the Multiple Operations tool and have been unable to successfully save a LO spreadsheet containing multiple operations into an Excel file. (I have tried placing the relevant formula in the top left cell!) By way of an example you can find a suitable Excel spreadsheet on the site called www.excel-easy.com, at a download address of https://www.excel-easy.com/examples/excel-files/data-tables.xlsx. I opened this file in LO 6.2 and all seemed well, so I re-saved it from LO as an Excel file. Unfortunately Excel generated errors when opening this version of the file and the resulting spreadsheet appeared to just contain numeric values rather than a proper Excel Data Table structure. Steps to Reproduce: Covered in Summary. Actual Results: Multiple Operations not mapped to Excel Data Table. Expected Results: Multiple Operations should be mapped to Excel Data Table. Reproducible: Always User Profile Reset: No Additional Info: The following are emailed thoughts from Eike Rathke: The original file for cell B13 contains an element <f t="dataTable" ref="B13:D17" dt2D="1" dtr="0" r1="D7" r2="C4"/> which expresses the table "formula" as a dataTable type. Calc when saving stores TABLE() formulas in the involved cells instead, which apparently was the correct way to do in the binary .xls format but not in OOXML .xlsx