\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
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\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
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\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Bahne (bahnen)}
\pdfinfo{
  /Title (excel-power-query.pdf)
  /Creator (Cheatography)
  /Author (Bahne (bahnen))
  /Subject (Excel Power Query Cheat Sheet)
}

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% This two commands together give roughly
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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% Header and Footer
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\fancyhead{} % Set header to blank
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Excel Power Query Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Bahne (bahnen)} via \textcolor{DarkBackground}{\uline{cheatography.com/40000/cs/12355/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Bahne (bahnen) \\
  \uline{cheatography.com/bahnen} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 8th July, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{match column value with column name}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If you have a column that contains a value that refers to another column's name that has other values. \newline % Row Count 3 (+ 3)
Lets say that you have a column "Region ID" that contains a value between 1-30 and then you have 1-30 columns named 1 through 30 and in each of those coloumn you have another value which varies. So you need to find out what is the value in coloumns 1-30 based on the ID in the column Region ID. \newline % Row Count 9 (+ 6)
= Record.Field(\_,Text.From({[}"Region ID"{]})) \newline % Row Count 10 (+ 1)
This simply takes the value from current row in column Region ID and returns the value in the same row from a coloumn name that matches Region ID cell value.% Row Count 14 (+ 4)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.08602 cm} p{0.4177 cm} p{0.4177 cm} x{2.25558 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Example}}  \tn
% Row 0
\SetRowColor{LightBackground}
Region ID & 1 & 2 & New Calculated column \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
2 & 20 & 33 & 33 \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
1 & 34 & 223 & 34 \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\SetRowColor{LightBackground}
\mymulticolumn{4}{x{5.377cm}}{Record.Field(\_,Text.From({[}"Region ID"{]}))  \newline here the new calculated column would return the value "33" in the first row and "34" in the second row.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Dynamic source}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{If you want your query to be able to change source, you can use a value from a CELL in your excel file.} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Get \& import from folder: Pick a CELL and type in the folderpath you want to fetch files from, create a named range for this CELL.} \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{open powerquery and advanced editor to type in the following:} \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{"YOURVARIABLENAME-1" = Excel.CurrentWorkbook()\{{[}Name="YOURNAMEDRANGE"{]}\}{[}Content{]}{[}Column1{]} \& "\textbackslash{}", "YOURVARIABLENAME-2" = \seqsplit{Folder.Contents("YOURVARIABLENAME-1")}, \seqsplit{Source="YOURVARIABLENAME-2"}} \tn 
% Row Count 12 (+ 4)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{This will result in a query that lists you the files in the folderpath you designated. Just copy and paste the path from explorer, the code above attaches a "\textbackslash{}" on the path because this is missing from that copy paste.} \tn 
% Row Count 17 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Trick: List intervals}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{List the numbers between the value in column-1 and column-2} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\#"Added custom interval list" = \seqsplit{Table.AddColumn(\#"PREVIOUSSTEP"}, "NEWCOLUMNNAME", each List.Numbers({[}COLUMNAME-1{]}, {[}COLUMNNAME-2{]}-{[}COLUMNNAME-1{]}+1,1)),} \tn 
% Row Count 6 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{TIP: Clean lookup tables for Doubles}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Make sure that your lookuptables have unique values, otherwise they could affect your final table with double rows.} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Example: I had a list of GoodsID that all belonged to GoodsGroups, many ID's could belong to one group. I needed the Group by the ID. I had not noticed that some ID's were in the lookuptable 3 times so each JOIN resulted in 3 matches and when i expanded the column i'd have 3 rows instead of just the 1 original with that extra column of GoodsGroup.} \tn 
% Row Count 10 (+ 7)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}