How do I convert a Unix epoch timestamp into a human readable date/time in Excel?

Yes, you can create a formula to do this for you. Java and Unix/Linux count the number of milliseconds since 1/1/1970 while Microsoft Excel does it starting on 1/1/1900 for Windows and 1/1/1904 for Mac OS X. You would just need to do the following to convert: For GMT time on Windows =((x/1000)/86400)+(DATEVALUE(“1-1-1970”) – DATEVALUE(“1-1-1900”)) … Read more

Sum up a column from a specific row down

=Sum(C:C)-Sum(C1:C5) Sum everything then remove the sum of the values in the cells you don’t want, no Volatile Offset’s, Indirect’s, or Array’s needed. Just for fun if you don’t like that method you could also use: =SUM($C$6:INDEX($C:$C,MATCH(9.99999999999999E+307,$C:$C)) The above formula will Sum only from C6 through the last cell in C:C where a match of … Read more

How to disable Excel’s automatic cell reference change after copy/paste?

From http://spreadsheetpage.com/index.php/tip/making_an_exact_copy_of_a_range_of_formulas_take_2: Put Excel in formula view mode. The easiest way to do this is to press Ctrl+` (that character is a “backwards apostrophe,” and is usually on the same key that has the ~ (tilde). Select the range to copy. Press Ctrl+C Start Windows Notepad Press Ctrl+V to past the copied data into Notepad … Read more

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