Texas

Texas Land Survey on Google Earth.
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State Plane

State Plane coordinate system for the United States is supported.

Read the blog article for more...

Share your story with Google

Interesting project? Google wants to hear about it!
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New Movie

I made a short video highlighting a few real estate features of Earth Point. It is a bit rough, but please enjoy.
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Excel To KML - Display Excel files on Google Earth.

A user account is recommended for the features on this web page. 

Import a spreadsheet of lat/long coordinates to Google Earth.  Pop-up balloons, icons, and paths are easily created from the spreadsheet data.

  A B C D E
1 Latitude Longitude Name Description Icon
2 43°36'34.86"N 116°12'23.30"W BAM Art museum 12
3 43 36 33.22 -116 12 18.40 Roses Nice garden 111
4 43.608879028 -116.20320277 Zoo Great visit 186
Sample points plotted onto Google Earth.
Latitude and Longitude are all that is needed to create a basic display on Google Earth.  Add a Name, Description, and an Icon for a professional presentation.

Advanced features support GPS tracks, Time Sliders, and Grid Coordinates.

To get started, read the Quick Start instructions or download the sample data ExcelToKmlDemo.zip.

NEW: AppendDataColumnsToDescription accepts a list of column names.

Select an Excel file (xls, xlsx, xlsm, xlsb, txt, or csv)

If you need help getting started, or if you have ideas for improvement, please write or call.

Quick Start

  • Open Excel.
  • Enter these words into separate cells on the first row: "Latitude", "Longitude", "Name", "Description", and "Icon".
  • On the rows that follow, enter the attributes of each point.
  • "Latitude" and "Longitude" are required.  The other columns are optional.
  • "Name" is the label that appears next to each icon on Google Earth.
  • "Description" is the text that appears in the Google Earth pop-up balloon.  An Excel formula can be used to combine data from several columns.
  • "Icon" designates the icon that is displayed for each point.  An easy way to get an icon is to enter a number from the table below.  If the Icon column is left blank or if it is missing, icon number 166 is displayed.  You can also enter an icon's "www" web address.  If you don't want an icon, enter the word "none".
  • Save the worksheet.
  • Click the "Browse" button above and select the worksheet you just created.
  • Click the "View on Google Earth" button.

To Save The File

  • In the "Places" window of Google Earth, right-click the folder "Earth Point Excel To KML".
  • From the pop-up menu, select "Save As".

Features

  • Displays an xls, xlsx, xlsm, xlsb (Excel), csv (comma separated values) or txt (tab delimited) file on Google Earth.
  • Excel columns "Latitude", "Longitude", "Name", "Description", and "Icon" are all that are needed for a professional looking presentation.
  • Advanced options allow you to elevate the icon above the earth's surface, draw a path ("connect the dots"), and control mouse-over effects.
  • Icons can be specified by entering a number from the table below or by entering the URL of an icon stored on a web server.
  • Formulas may be entered into any cell of a spreadsheet. Formulas can be used to specify icons, icon scale, format the Description text, etc. Formulas cannot be used in csv or txt files.
  • Column specifications are listed below.

GPS Track: use the following columns: Latitude, Longitude, LineStringColor, Icon, IconColor, and IconHeading.  Enter "lime" or "yellow" into the LineStringColor column. For direction arrows, enter "196" into Icon, "yellow" into IconColor, and "line-180" into IconHeading.  If you don't want an icon, enter "none" into the Icon column.  more...

  A B C D E F
1 Latitude Longitude LineStringColor Icon IconColor IconHeading
2 43.6097 -116.2048 cyan 196 yellow line -180
3 43.6095 -116.2047 cyan 196 yellow line -180
4 43.6094 -116.2046 cyan 196 yellow line -180
GPS track in a spreadsheet, csv, or txt file.
GPS track on Google Earth.

Time Slider: If you have GPS tracks or other data that contains time information, you can view this information sequentially using the time slider in Google Earth.  Excel To Kml looks for time information in columns labeled TimeWhen, TimeBegin, and TimeEnd.  See the specifications below.  Google Earth Blog has more information about the time slider.

Universal Transverse Mercator grid.
Courtesy Wikipedia.
Grid Coordinates: ExcelToKml supports:
Universal Transverse Mercator (UTM)
Universal Polar Stereographic (UPS)
Military Grid Reference System (MGRS)
MGRS Polar
U.S. National Grid (USNG) identical to MGRS
Maidenhead used by amateur radio operators
World Geographic Reference System (Georef)
State Plane United States only

LatLon can be joined as one coordinate.  See the specifications below.

Guidelines

  • File name must end in ".xls", ".xlsx", ".xlsm", ".xlsb", ".csv", or ".txt"
  • The first row that contains the values "Latitude" and Longitude" or the value "Position" is considered to be the heading row. All previous rows are ignored. All subsequent rows are treated as data.
  • The columns listed below control the appearance of each placemark. "Latitude" and "Longitude" are required. All others are optional. Any column not listed is ignored.
  • Multiple worksheets are allowed in an Excel workbook. Each worksheet name will be displayed as a separate folder in Google Earth "My Places".

Security

Excel To KML security is comparable to sending an email to a trusted colleague.  Your data is transmitted over the internet and saved as a file on the Earth Point server.  The data is immediately sent back to your PC in the form of a KML file and the original file is removed from the Earth Point server.

Issues

  • There are a few issues with the OleDb driver used to read Excel files. Csv and txt files are not affected by these issues.
  • Data is read from columns A to UV (1 to 255) of the spreadsheet. Column IV (256) and beyond are ignored.
  • By default, for each column of the worksheet, the driver reads only the first 255 characters of each cell. For most people, this is not a problem, as their cells contain less than 255 characters. However, there is a solution. For any column, if there is a larger cell within the first eight rows of the worksheet, then the driver will allocate more space to reading the cells of that column. If you have larger columns, such as "Description", an easy fix is to put =REPT(" ",256) in the first row of the effected columns, and to put the column headings in the second row of the worksheet. The large cells signal the OleDb driver to allocate more space to reading those columns, and since they appear before the heading row, the large cells are ignored by the Excel To KML conversion process. ExcelToKml does report truncation problems. For each column, if the OleDb driver finds no cells longer than 255 characters within the first eight rows, but further down there are cells that are exactly 255 characters, then truncation has likely occurred and is reported.
  • If a worksheet starts out with empty rows, these are not displayed on this web page, and the apparent row numbers are inaccurate. This problem can be ignored, since it has no effect on the display on Google Earth or on the functionality of ExcelToKml, but one fix is to type a space anywhere in the first row of the worksheet. Since there is no problem with empty rows within the worksheet data itself, all rows will be displayed correctly.

Columns Used By Excel To KML

Latitude, Longitude, Name, Description, and Icon are all that are necessary for a professional looking presentation.  Advanced options allow you to elevate the icon above the earth's surface, draw a path ("connect the dots"), and control mouse-over effects.  Excel To KML ignores any additional columns in your spreadsheet.

Required Columns
Column Heading Default Value Description
Latitude None Latitude of point.  Google Earth uses the WGS84 geodetic datum.  Valid formats include:
  N43°38'19.39"
  43°38'19.39"N
  43 38 19.39
  43.63871944444445

If expressed in decimal form, northern latitudes are positive, southern latitudes are negative.

If blank or invalid, item is not displayed on Google Earth.
Longitude None Longitude of point.  Google Earth uses the WGS84 geodetic datum.  Valid formats include:
  W116°14'28.86"
  116°14'28.86"W
  -116 14 28.86
  -116.2413513485235

If expressed in decimal form, eastern longitudes are positive, western longitudes are negative.

If blank or invalid, item is not displayed on Google Earth.

Basic Optional Columns
Column Heading Default Value Description
Name None The text displayed next to the icon on Google Earth.

If blank, no text is displayed.
Description None The text displayed in the Google Earth pop-up balloon.

An Excel formula can be used to combine text from several columns. For example, to display data from columns D, E, and F, with each of D, E, and F on its own line, and supposing we are on row 6, the Description column formula is
=D6 & "<br/>" & E6 & "<br/>" & F6
where <br/> is the html tag for a new line.

HTML tags are allowed. Note to HTML authors:
Except for specifying font color, the HTML "style" attribute is ignored by Google Earth. Earlier formatting methods must be used, as illustrated in the sample data ExcelToKmlDemo.zip.

If blank, no balloon is displayed.
Icon   Icon can be any of:
1) A integer between 1 to 279, or 301 to 529, which designates an icon selected from either of the tables below; or
2) The URL of an icon stored on a web site; or
3) The path of a file on your hard drive or network drive, for example
  C:/folder/file.jpg or
  file:///C:folder/file.jpg
  (note the three slashes, not two, after "file:"); or
4) the word "none".
If the file cannot be found, Google displays .
If "none", no icon is displayed.
If blank, is displayed.

Advanced Optional Columns
Column Heading Default Value Description
AppendDataColumnsToDescription None Valid values are "True", "Yes", "x", "False", "No", blank, or a list of column names.

If "True", "Yes", or "x": appends spreadsheet data to the Description text. Includes all columns NOT used to format the Excel To Kml output. Also includes the "Name", "Latitude", "Longitude", "Position", and "TownshipAndRange" columns. "Name" is used as the Description title.

If "False", "No", or blank: does nothing.

If a list of column names, such as "Address, Price, City, Color, Region": these columns (if they exist in the spreadsheet) are appended to the Description in the order listed. If "Name" is included in the list, then the "Name" value forms the Description title.
AppendLatLonToDescription None Valid values are "True", "Yes", "x", "False", "No", and blank. If true, appends Latitude and Longitude information to the Description text. Useful for seeing the translation of coordinates that are entered into the Position column. The description text is displayed in the Google Earth pop-up balloon. The description text is also displayed in the spreadsheet view on this web page.

The following example reports that "30UXC3542" is entered into the Position column, that it is an MGRS coordinate for a 1-kilometer grid, and that the equivalent Lat/Lon is 51.812518, -1.0416

MGRS KM:  30UXC3542
Lat, Lon:  51.812518, -1.0416

If blank, no text is appended to the Description text.

If the spreadsheet does not have a "Description" column, the text will nonetheless be displayed in the Google Earth pop-up balloon. However, no text will be added to the spreadsheet view on this web page.
Folder blank Organizes the data into folders and subfolders. When viewing the data in Google Earth, the entire contents of a folder can be hidden or shown by clicking the folder in the "My Places" window. Both forward-slashes and back-slashes can be used to separate the folder levels.

Examples:
Country One
Country One/City One/Street One
Country One/City Two
Country Three/Office Four/Room Six
HideNameUntilMouseOver False Valid values are "True", "Yes", "x", "False", "No", and blank. If true, the icon is displayed with no label, until mouse over, then the label is displayed. If False, the label is always displayed. If there many rows in your data, is helpful to hide the labels to reduce screen clutter.

If blank, Name is always displayed, regardless of mouse-over.
IconScale 1 A decimal number that increases or decreases the display size of the icon. Typical values are in the range of .5 to 1. No matter how big or small an image actually is, Google Earth displays it according to the scale. For example,

Scale=1

Scale=.7

Scale=1.5

If blank, scale is 1.
IconAltitude 0 Height of icon above the ground (default) or sea level (optional), in meters.

If blank, height is 0.

See IconAltitudeMode, just below.
IconAltitudeMode Relative If blank, "Relative", "AGL", or "AboveGroundLevel", the altitude of the icon is measured from ground level.

If "Absolute", "MSL", or "MeanSeaLevel", the altitude of the icon measured from sea level.
IconLineColor
IconLineColour
Yellow If the icon is elevated above the ground (see IconAltitude) this is the HTML color of the line drawn from ground up to the icon. Can be any of the html named colors, an HTML hexadecimal color code, or the word "none".

A few of the named colors are:

Cyan Black Blue Fuchsia
Gray Green Lime Maroon
Navy Olive Purple Red
Silver Teal White Yellow

If "none", the line is not displayed.
If blank, color is yellow.
IconColor
IconColour
None Fills an icon with a color.
Can be any of the html named colors, an HTML hexadecimal color code, or the word "none".

If you want to color one of the Google Earth icons, we have made a table of black-and-white Google Earth icons to choose from. The reason is that if IconColor is specified, then Google Earth mathematically adds that color to the base colors of your icon. Thus, IconColor works best with icons that have little color in them to begin with.

From the chart of official Google Earth icons below, icons such as 46, 53, and 180 through 184 are good choices. Note that the color "white" does not do anything. White, which is represented by the number 0, when added to the icon's base colors, has no effect.

If blank, "white", or "none", the icon is left alone.
IconHeading None Rotates an icon.
Can be a number, the word "line" or the word "line" plus or minus a number.
A positive number rotates the icon to the right by the number of degrees specified by the number.
A negative number rotates the icon to the left.
The word "line" rotates the icon to face in the direction of travel.
The word "line" plus or minus a number rotates the icon to face the direction of travel, then rotates it some more as specified by the number.

If blank, or 0, the icon is not rotated.
LabelColor
LabelColour
White Color of the label that is displayed next to the ion on Google Earth.

If "none", the label is not displayed. If blank, the label is white.
LabelScale 1 Size of the label that is displayed next to the ion on Google Earth. Typical values are in the range of .8 to 2.

If blank, the scale is 1.
LineStringColor
LineStringColour
None "Connect the dots" - draws a line from this point to the next.

If "none" or blank, the line is not displayed.
LineStringWidth 2 Width of the line drawn from one point to the next. A decimal number, typically in the range of 1 to 3.

If 0, the line is not displayed.
If blank, width is 2.
LineStringAltitude 0 The altitude, in meters above the ground, of this end of the LineString.

If blank, altitude is 0.
LineStringAltitudeMode Relative If blank, "Relative", "AGL", or "AboveGroundLevel", the altitude of the line is measured from ground level.

If "Absolute", "MSL", or "MeanSeaLevel", the altitude of the line measured from sea level.
Position None The position of the icon, in a number of formats: LatLon, UTM, UPS, MGRS, MGRS Polar, USNG (identical to MGRS), Maidenhead, Georef, and State Plane.

Used in place of Latitude and Longitude.

The following positions refer to 39° 18' 40.58" N 102° 17' 30.47" W which is near Burlington, Colorado, USA.

In the following table, "d" is used to mark degree digits, "m" for minutes, and "s" for seconds. For lat/lon, the letters "N, S, E, and W can come before or after the coordinates. So long as the coordinate can be understood, punctuation, spaces, and °'" are optional. Acceptable formats include:
Dec Degs 39.3112710°,-102.2917960°
dd.dddddd   ddd.dddddd
Dec Degs Micro 39.3112710N,102.2917960W
dd.dddddd ddd.dddddd
Dec Mins 39°18.67626', -102°17.50776'
ddmm.mmmm dddmm.mmmm
Dec Mins 3918.67626N10217.50776W
ddmm.mmmm dddmm.mmmm
Deg Min Secs 39°18'40.5756", -102°17'30.4656"
dd mm ss.sss    dd mm ss.sss  
Dec Mins Secs 391840.5756N, 1021730.4656W
ddmmss.sss dddmmss.sss
UTM 13S 733494mE 4354817mN
MGRS, USNG 13SGD3349454817
State Plane United States State Plane coordinates.
Easting and Northing (X and Y) can be in Meters, US Survey Feet, or International Feet, where
1 US survey foot = 1200/3937 meters, and
1 international foot = 0.3048 meters

Our sample point, 39° 18' 40.58" N 102° 17' 30.47" W, is located in Zone 3001, "Colorado Central"
The position is specified as "Zone X Y" as follows:
0502 1191021.832 473748.348 (meters is assumed)
0502 1191021.832m 473748.348m (meters)
0502 3907544.126ftUS 1554289.373ftUS (US Survey Feet)
0502 3907551.941ft 1554292.482ft (International Feet)

Supported units of measure
m, or not specified Meters
USft, ftUS, sft, fts US Survey Feet
ft, ift, fti International Feet

X, Y, East, and North
By default, the X coordinate, or Easting is specified first and the Y coordinate, or Northing is specified second. However, the order can be reversed if coordinates are explicitly labeled. Example:
0502 3907544.126ftUS 1554289.373ftUS Normal specification - Zone 1102 followed by Easting and Northing in US Survey Feet
0502 1554289.373NftUS 3907544.126EftUS Same coordinate, order reversed, Northing followed by Easting.
0502 1554289.373YftUS 3907544.126XftUS Order reversed, Y coordinate is first, X coordinate is second.
Maidenhead DM89UH44XQ69

An extended twelve-digit grid is supported.  The lowest level grid measures .125 seconds of longitude x .0625 seconds of latitude.

Note that UTM position "13S" is in the Northern hemisphere.  Earth Point uses the convention that the UTM Band letters C, D, E, F, G, H, J, K, L, M are in the southern hemisphere and N, P, Q, R, S, T, U, V, X are in the northern hemisphere.  UPS letters A, B, Y, Z are also supported.

Georef is specified to .01 minutes, which is a lower resolution than the other systems. Thus, Georef cannot plot the above location exactly. The next two points are the same, but they are about 570 meters southeast of the points above.
deg min 39°18.67', -102°17.51'
dd mm.mm  ddd mm.mm
Georef FJCK42491867

UPS is supported.  This point is by the North Pole.
Deg Min Secs 84°17'14.0363"N, 042°14'52.4473E"
dd mm ss.ssss    ddd mm ss.ssss  
UPS Z2426773E1530125N
MGRS ZGC2677330125

The equivalent Lat/Lon coordinates can be displayed by:
  1. Add an AppendLatLonToDescription column to the spreadsheet. If the spreadsheet also has a "Description" column, then the Lat/Lon coordinates will be added to the description.
  2. Click the "View File on Web Page, Check for errors" button above. Mouse-over the Position column entries. The Lat/Lon coordinates are displayed.

For each row of the spreadsheet:
Exactly one of Latitude and Longitude, Position, TownshipAndRange, or TexasAbstract must be filled in. The others must be blank. If all are blank, or if more than one is filled in, then the row is in error and will not be mapped.
TownshipAndRange None Western United States only, in a number of formats. Used in place of Latitude and Longitude or Position.

The Quarter/Quarter closest to our example position 39° 18' 40.58" N 102° 17' 30.47" W is the SE 1/4 of the NW 1/4 of Section 35, Range 44 West, Township 8 South, Sixth Meridian, Colorado.

Verbose, forward and reversed
SE 1/4 of the NW 1/4 of Section 35, Range 44 West, Township 8 South, Sixth Meridian, Colorado
Colorado, Sixth Meridian, Township 8 South, Range 44 West, Section 35, SE 1/4 of the NW 1/4

Abbreviated, forward and reversed
SENW 35 44W 8S 6th CO
CO 6th 8S 44W 35 SENW

If there is no possibility of duplication, the state or the meridian can be dropped. In the above examples, both
SENW 35 44W 8S 6th and
SENW 35 44W 8S CO are both allowed.

However, some states have more that one meridian, for example California has three.
CA 14N 6E could be in any of the Humboldt, Mount Diablo, or San Bernardino meridians.
Yet, Humboldt 14N 6E is allowed, as there is no chance of duplication.

Likewise, a single meridian can cross into more than one state, causing duplication along the border. For example,
6th 12N 84W could be in either Colorado or Montana. However, Colorado 12N 84 West and Montana 12N 84W are permitted as there is no possibility of duplication.

Other formats
USGS Meridian Code may be used in place of the meridian name
For example, California Humboldt 14N 6E would be CA 15 14N 6E

BLM "Landkey"
CO 6th 8S 44W 35 SENW would be
CO06T0080S0440W035SENW

BLM Geocoder format
CA,21,016,0,N,002,0,W,029,NENE,0
CO,6,8,0,S44,0,W,35,SENW,0

USGS
Code

Meridian Name
1 First
2 Second
3 Third
4 Fourth
5 Fifth
6 Sixth
7 Black Hills
8 Boise
9 Chickasaw
10 Choctaw
11 Cimarron
12 Copper River
13 Fairbanks
14 Gila-Salt River
15 Humboldt
16 Huntsville
17 Indian
18 Louisiana
19 Michigan
20 Montana
21 Mount Diablo
22 Navajo
23 New Mexico
24 St. Helena
25 St. Stephens
26 Salt Lake
27 San Bernardino
28 Seward
29 Tallahassee
30 Uintah
31 Ute
32 Washington
33 Willamette
34 Wind River
35 Ohio River Base
36 Between the Miamis
37 Muskingham River
38 38 Unknown
39 Scioto River Base (First)
40 Scioto River Base
41 Scioto River Base (Third)
42 42 Unknown
43 Twelve-Mile-Square
44 Kateel River
45 Umiat
47 West of the Great Miami
48 U.S. Military Survey
91 Connecticut Western
92 Ohio Company Purchase

The equivalent Lat/Lon coordinates can be displayed by:
  1. Add an AppendLatLonToDescription column to the spreadsheet. If the spreadsheet also has a "Description" column, then the Lat/Lon coordinates will be added to the description.
  2. Click the "View File on Web Page, Check for errors" button above. Mouse-over the Position column entries. The Lat/Lon coordinates are displayed.

For each row of the spreadsheet:
Exactly one of Latitude and Longitude, Position, TownshipAndRange, or TexasAbstract must be filled in. The others must be blank. If all are blank, or if more than one is filled in, then the row is in error and will not be mapped.
Texas Abstract None State of Texas, United States only, in a number of formats. Used in place of Latitude and Longitude or Position.

Example, abstract 1025 in Anderson county:
The FIPS code for Anderson county is 001, so the complete abstract number is 0011025. The county name can be used in place of the FIPS code, as in Anderson 1025. The space between the county name or code and abstract number is optional.

The following values will be interpreted as abstract 1025 in Anderson county.
="0011025"
="001 1025"
'001 1025
'0011025
Anderson1025
Anderson 1025

Note that Excel removes leading zeros from numeric values. If 0011025 is entered into a cell, the value stored is 11025. Unfortunately, 11025 is not the number of any Texas Abstract. There are several ways to preserve the leading zeros.
1) Enter the value as a formula, ="0011025"
2) Precede the numeric value with a single quote, '0011025
3) Use the Excel toolbar to format the cell as "text".


The equivalent Lat/Lon coordinates can be displayed by:
  1. Add an AppendLatLonToDescription column to the spreadsheet. If the spreadsheet also has a "Description" column, then the Lat/Lon coordinates will be added to the description.
  2. Click the "View File on Web Page, Check for errors" button above. Mouse-over the Position column entries. The Lat/Lon coordinates are displayed.

For each row of the spreadsheet:
Exactly one of Latitude and Longitude, Position, TownshipAndRange, or TexasAbstract must be filled in. The others must be blank. If all are blank, or if more than one is filled in, then the row is in error and will not be mapped.
Snippet None A short text description that is displayed under the Name in the "My Places" section of Google Earth.

If blank, no text is displayed.
TimeWhen None TimeWhen identifies a location that is to be displayed at a single moment in time.

If blank or invalid the value is ignored.

If you have GPS tracks or other data that contains time information, you can view this information sequentially using the time slider in Google Earth.  Google Earth Blog has more information about the time slider.

Valid formats include:
August 17, 2007 1:09:26 PM
8/17/07 13:09:26
2007-08-17 13:09:26
1:09:26 PM
2007-08-17

Eras are supported. AD (Anno Domini), BC (Before Christ), CE (Common Era), and BCE (Before Common Era), +, and - can appear before or after the date, or the era can be entered separately into the TimeWhenEra column.

Generally speaking, the TimeWhenEra column is the easiest way to add an era. The reason is that if era is entered together with the date in the TimeWhen column, the date formatting will likely be lost, causing the Excel To Kml utility to report an invalid value.
However, if the era is to appear together with the date in the TimeWhen column, as might be the case if the data is imported into Excel from another source, then the following are a few valid examples:
8/17/07 13:09:26 BC
B.C.E. 8/17/07 13:09:26
AD 8/17/07 13:09:26

It is also possible to use a formula in the TimeWhen column to combine date and era.
  ... C D E
1 ... Date Era TimeWhen
2 ... 2007-08-17 BC =Text(C2, "yyyy-mm-dd") & D2
3 ... Aug 17, 2007 B.C.E. =Text(E3, "yyyy-mm-dd") & D3
4 ... 8/17/07 - =Text(E4, "yyyy-mm-dd") & D4

The result in column E would be
2007-08-17 BC
2007-08-17 B.C.E.
2007-08-17 - (minus sign)
TimeWhenEra blank Eras are supported.
AD or A.D. (Anno Domini),
BC or B.C. (Before Christ),
CE or C.E. (Common Era),
BCE or B.C.E. (Before Common Era),
+ (plus),
- (minus)

If blank or invalid the value is Common Era, also known as AD.
TimeBegin None Indicates that the location is displayed for a span of time starting at TimeBegin. TimeBegin is often paired with TimeEnd. However, if TimeBegin is specified, but TimeEnd is missing, the location is displayed from TimeBegin forever after.

Eras are supported. See TimeWhen for details.

If blank or invalid the value is ignored.
TimeBeginEra blank Eras are supported.
AD or A.D. (Anno Domini),
BC or B.C. (Before Christ),
CE or C.E. (Common Era),
BCE or B.C.E. (Before Common Era),
+ (plus),
- (minus)

If blank or invalid the value is Common Era, also known as AD.
TimeEnd None Indicates that the location is displayed for a span of time ending at TimeEnd. TimeEnd is often paired with TimeBegin. However, if TimeEnd is specified, but TimeBegin is missing, the location is displayed form the beginning of time until TimeEnd.

Eras are supported. See TimeWhen for details.

If blank or invalid the value is ignored.
TimeEndEra blank Eras are supported.
AD or A.D. (Anno Domini),
BC or B.C. (Before Christ),
CE or C.E. (Common Era),
BCE or B.C.E. (Before Common Era),
+ (plus),
- (minus)

If blank or invalid the value is Common Era, also known as AD.
All other columns are ignored.   Other columns are allowed in the file however they are not used by Excel To KML.


Google Earth Icons

These icons can be displayed on Google Earth by entering the icon number into the "Icon" column of the spreadsheet.  Move your mouse over each icon to see what the mouse-over effect will look like on Google Earth. If you want to color the icons, add an "IconColor" column to your spreadsheet, and try the black-and-white icons below.


Google Earth Icons, black and white

These icons are suitable for use with the "IconColor" column. These icons can be displayed on Google Earth by entering the icon number into the "Icon" column of the spreadsheet. These icons are black and white versions of the official Google Earth icons listed above. The most useful might be the lettered "paddles", numbers 419 through 454. By default, these are red, and do not color very well; but, the black-and-white versions color quite nicely.