user48450: I installed Bitcoin-Core Wallet and downloaded the whole 130gigs BlockChain. Now I'd like to read the BlockChain Data to know all bitcoin values since the beginning. Not sure how to start. I need that data for making my own graphs in Excel
How can I read data from the whole BlockChain? Thanks.

user51528: My understanding of your question is that you want a tool that parses/queries the blockchain and saves the results into an Excel file. I'm not sure that something like that exists, but if you're willing to experiment with code then there are options.

Abe is a block browser for Bitcoin & similar currencies. Written in Python.
BitcoinJS is a javaScript library for the Bitcoin blockchain.
fast-dat-parser a blockchain parser written in C++.

Each of these libraries is capable of reading the blockchain, and the languages have other libraries for saving data to Excel, CSV, in a database, etc.

user26873: It sounds like you are asking how to build a block explorer. Basically you would activate the full transaction index by adding txindex=1 to your bitcoin.conf. Parse all the history data and dump it into a database. Then keep track of all the new transaction data on your own database as blocks come in with blocknotify or real-time with ZMQ notifications.
https://github.com/bitcoin/bitcoin/blob/master/doc/zmq.md#usage
There's also options like bitpay's bitcore that pretty much does the work for you. It does require a lot more HD space though. 

48450: <p>I installed Bitcoin-Core Wallet and downloaded the whole 130gigs BlockChain. Now I'd like to read the BlockChain Data to know all bitcoin values since the beginning. Not sure how to start. I need that data for making my own graphs in Excel</p>

<p>How can I read data from the whole BlockChain? Thanks.</p>
 51528: <p>My understanding of your question is that you want a tool that parses/queries the blockchain and saves the results into an Excel file. I'm not sure that something like that exists, but if you're willing to experiment with code then there are options.</p>

<ul>
<li><a href="https://github.com/bitcoin-abe/bitcoin-abe" rel="nofollow noreferrer">Abe</a> is a block browser for Bitcoin &amp; similar currencies. Written in Python.</li>
<li><a href="https://bitcoinjs.org/" rel="nofollow noreferrer">BitcoinJS</a> is a javaScript library for the Bitcoin blockchain.</li>
<li><a href="https://github.com/dcousens/fast-dat-parser" rel="nofollow noreferrer">fast-dat-parser</a> a blockchain parser written in C++.</li>
</ul>

<p>Each of these libraries is capable of reading the blockchain, and the languages have other libraries for saving data to Excel, CSV, in a database, etc.</p>
 26873: <p>It sounds like you are asking how to build a block explorer. Basically you would activate the full transaction index by adding <code>txindex=1</code> to your bitcoin.conf. Parse all the history data and dump it into a database. Then keep track of all the new transaction data on your own database as blocks come in with <code>blocknotify</code> or real-time with ZMQ notifications.</p>

<p><a href="https://github.com/bitcoin/bitcoin/blob/master/doc/zmq.md#usage" rel="nofollow noreferrer">https://github.com/bitcoin/bitcoin/blob/master/doc/zmq.md#usage</a></p>

<p>There's also options like bitpay's bitcore that pretty much does the work for you. It does require a lot more HD space though. </p>
