Data written to excel string is text rather than double when opened in excel

I have code that combines a time string, numerous double arays and a couple of individual doubles. All seems to work well except when I open the created data file in excel, the first cell after the time string is always a string and not numeric. This is the first value in a double aray and all the other elements of the array are correctly converted to numbers. Only the first element is being interpreted incorrectly. This is messing up an other wise nice spreadsheet.
Any thoughts?
Solved!
Go to Solution.
Attachments:
WriteRecord.png ‏43 KB

The problem is Excel. When Excel gets a text file, it isn't actually opening the file, it is importing it. It has default settings it uses for how to parse the data. It seems to have no problem recognizing a tab as a cell separator, but it doesn't recognize a comma has a cell separator. In older Excel, you could do a File/Import, and you'd have to intentionally check the checkbox for a comma to be a delimiter.
I really think Microsoft was pretty stupid on this point. Excel recognizes CSV as a file type to import. CSV stands for Comma Separated Values. Yet Excel doesn't treat the comma as a separator.
Do you have to use a comma as a separator, or can you use a tab?
Your code is kind of convoluted (as pointed out by others). Your combining string manipulations with array to spreadsheet string making a comma has a delimiter, then building an array, then writing that 2 column array to a file using Write to Spreadsheet file where now the tab is your delimiter. That is why the first column sort of works. Excel understands the tab.
That whole section of code really needs to be rewritten and use a consistent format.

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