Created attachment 155901 [details] Simulated error file. when we use 'SUM' formula in cell's, the sumarize don't occurr. in my example =SUM(B2:B5) - file expenses02.xlsx. this file is generated with a python library xlsxwriter (se the site https://xlsxwriter.readthedocs.io/ ) i open this file in MIcrosoft Excel and this error don t occurr. I open this file in Google SpreadSheet and this error don t occurr. Manually to correct this error, i enter editing cell 'B6', add a blankspace at final express and press enter. After this the formula is running normally. its very strange Thanks a lot. Carlos Monari
(In reply to Carlos Monari from comment #0) > when we use 'SUM' formula in cell's, the sumarize don't occurr. > in my example =SUM(B2:B5) - file expenses02.xlsx. You need to do a hard recalc after loading: Menu Data/Calculate/Recalculate Hard. or change option: Menu Tools/Options/LibreOffice Calc/Formula Recalculation on File Load: Excel 2007 and newer: [Always Recalculate]