There was no update for April 2017. However, for May, there were seven cryptocurrencies added to the spreadsheets. They coins are as follows...
Augur - REP
Gnosis - GNO
Golem - GNT
Matchpool - GUP
PIVX - PIVX
Ubiq - UBQ
Wings - WINGS

We have a few new currencies that were added to the spreadsheets. They are as follows...

• BitConnect - BCC
  
• ByteBall - GBYTE
  
• Hacker Gold - HKG
  
• ION - ION
  
• Komodo - KMD
  
• Veros - VRS
  

Hi all,
I have updated all of the spreadsheets for this month in addition to updating the currency conversion API for the Euro and Yuan spreadsheets. This should prevent any problems with the spreadsheets not loading correctly. If you do run into any problems in the future, please reach out to me using the contact page. The currency additions for February are as follows...

• Golos
• Nexium
• Pascal Coin

Greetings all,

Once again, the February update will be necessary for full functionality of the Euro and Yuan spreadsheets. I am allowing a one month transition period that will allow full functionality for all spreadsheets prior and after the February 2017 update. Beginning March 1st, 2017, all spreadsheets prior to the release in February 2017 will be obsolete.

I apologize for the inconvenience and know that API's should be backwards compatible with new updates, but this change is necessary to allow the site and all spreadsheets to be offered for free. I do not want to have to end up charging users for access to a spreadsheet of their choosing. The older spreadsheets that some of you are still using is far outdated and that API is still calling prices for coins that are either abandoned or lack a large user base.

Thank you for your cooperation and continued usage.

I apologize for the outage over the past ~36 hours. The issue is now resolved. 
In this update there will be no additions, but did a lot of slimming down of coins that have declined in marketcap value since my last cleanup in September '15.  If you would like any of the removed coins to be added again, please fill out the coin request form.

THE JANUARY UPDATE WILL BE MANDATORY FOR CONTINUED FUNCTIONALITY

I apologize for the lack of an update in August. Summer classes were quite hectic and didn't leave me much free time. I did do an informal update on 7/23 where I added Ethereum Classic. So formally, the added currencies in this update are...

• Ethereum Classic
• Peerplays
• Stratis

I have made some late changes to the spreadsheets for July. I added the following four digital currencies to the spreadsheets. 

• ​Breakout
• LBRY Credits
• Rise
• Waves

For June, there were five coins I decided to add to the spreadsheet. They are as follows...

• The DAO
• DigixDAO
• Lisk
• Nexus
• Steem

To track multiple wallet addresses, you will have to edit the formula from the "Number of Coins" column. You can do this for as many addresses you would like. I'm going to use Auroracoin in my example.

1. Click the cell listing the coin amount listed "Number of Coins" which in this case is G7.
2. In the formula bar, you will see,  =ImportData("http://chainz.cryptoid.info/aur/api.dws?q=getbalance&a="&E7)
3. You need to delete the &E7 at the end. In between the = and ", paste your address, also ensuring the parentheses is closed.
4. Your formula bar should look similar to this besides the coin symbol and your address.  =ImportData("http://chainz.cryptoid.info/aur/api.dws?q=getbalance&a=AeFfHiN2utfvk8z7kcs9Uejh96JQoiQbvi")
5. Next, add a space after the parentheses, then a + and another space.
6. Copy the formula except for the equal sign, and leave out the two spaces and addition sign at the end.
7. Paste the formula in the space after the addition sign. 
8. Delete the address of the text you just pasted and replace it with your second address.
   
9. In the end, the formula should look similar to this...  =ImportData("http://chainz.cryptoid.info/aur/api.dws?q=getbalance&a=AeFfHiN2utfvk8z7kcs9Uejh96JQoiQbvi") + ImportData("http://chainz.​cryptoid.info/aur/api.dws?q=getbalance&a=AYqTS41ngGyvUQgrQGrKLRxSPUTt18zdxY")