(Submitted by Chinmaya Rath)
In our everyday life we require various calculations and many references. For example I can say we may need to calculate our age, may need the train timing, the unit conversion tool, some important websites reference, height-weight calculation for our health, world time, calendar, mobile number tracker etc. We generally maintain all these things in our personal diary. But now you can get all these things in a all-in-one excel file.
Really a grand salute to the creator of this sheet. This is just awesome. You will get the following sheets in the excel file. There are all total 27 useful sheets out of which only some are visible in the following diagram.
The following image is the snapshot of the first sheet of the excel file and it is about unit conversions.