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Translate Excel Formaulas form one language to another.


File Formats

Extension Short Name Description
.xlsx Default Excel workbook format Supports advanced formatting, formulas, and charts. Widely compatible.
.xlsm Excel with Marco Supports macros in addition to features of XLSX. Allows creating and running VBA macros within the workbook.
.xlsb Excel Binary format Binary format that's faster to open and save. Suitable for large datasets due to its efficient storage.
.csv Comma-Separated Values CSV format for easy data exchange between applications. Each line represents a row, values are comma-separated.
.xml Extensible Markup Language XML format for sharing structured data between systems. Excel can export/import data in XML.
.ods OpenDocument Spreadsheet Used by various spreadsheet applications like LibreOffice.
.xltx Excel Template Used as templates for new workbooks with predefined formatting, styles, and layouts.
.xltm Template format with macros support Can contain macros along with predefined workbook settings.
.xlw Excel Workspace format Used to save multiple sheets and settings as a workspace to be opened together.
.xlk Excel Backup File format Temporary file created when Excel crashes; can sometimes help recover unsaved data.
.xlam Excel Add-In format Contains macros and custom functions to extend Excel's capabilities.
.xla Excel Add-In format Used in older versions of Excel for custom functions and automation.


Find double entries

=WENN(VERGLEICH(A1;A:A;0)=ZEILE();"Einfacher Eintrag";"Mehrere Einträge")
=IF(MATCH(A1;A:A;0)=ROW();"Single entry";"Multiple entries")

Create a Sierpinski triangle

Add "1" in field "V1" and copy the formula down and to the sides:


Extract first name from email:


Extract last name from email:


Extract full name from email:

=WECHSELN((LINKS(A1;FINDEN("@";A1)-1));".";" ")
=SUBSTITUTE((LEFT(A1,FIND("@",A1)-1)),"."," ")


Define number format

Selection.NumberFormat = "#,##0_ ;-#,##0 "

Turn off aAlerts

Application.DisplayAlerts = False



Chart Trendline Formulas

When you add a trendline to a chart, Excel provides an option to display the trendline equation in the chart. This tip describes how to create formulas that generate the trendline coefficients. You can then use these formulas to calculate predicted y values for give values of x. These equations assume that your sheet has two named ranges: x and y.

Linear Trendline

Equation: y = m * x + b
m: =SLOPE(y,x)
b: =INTERCEPT(y,x)

Logarithmic Trendline

Equation: y = (c * LN(x)) + b
c: =INDEX(LINEST(y,LN(x)),1)
b: =INDEX(LINEST(y,LN(x)),1,2)

Power Trendline

Equation: y=c*x^b
c: =EXP(INDEX(LINEST(LN(y),LN(x),,),1,2))
b: =INDEX(LINEST(LN(y),LN(x),,),1)

Exponential Trendline

Equation: y = c *e ^(b * x)
c: =EXP(INDEX(LINEST(LN(y),x),1,2))
b: =INDEX(LINEST(LN(y),x),1)

2nd Order Polynomial Trendline

Equation: y = (c2 * x^2) + (c1 * x ^1) + b
c2: =INDEX(LINEST(y,x^{1,2}),1)
C1: =INDEX(LINEST(y,x^{1,2}),1,2)
b = =INDEX(LINEST(y,x^{1,2}),1,3)

3rd Order Polynomial Trendline

Equation: y = (c3 * x^3) + (c2 * x^2) + (c1 * x^1) + b
c3: =INDEX(LINEST(y,x^{1,2,3}),1)
c2: =INDEX(LINEST(y,x^{1,2,3}),1,2)
C1: =INDEX(LINEST(y,x^{1,2,3}),1,3)
b: =INDEX(LINEST(y,x^{1,2,3}),1,4)