Citect SCADA Process Analyst, "space" between thousands and hundreds in Excel

That must be coming from your Windows Locale settings. I don't get that when I export from PA on my PC in Windows/USA English. You may want to try my Trend Export CSV Multi Cicode Function from the Citect Toolbox. It includes PaTrnExportCSV() which can read the current display settings from Process Analyst and export the current data with more options than the built-in export feature. It should not add commas or spaces in the values.