Convert CSV To HTML & Convert CSV to XML With/Without MS Excel

Command Line Examples: Conversion of CSV to HTM

 

The first example shows how to convert the most popular form of a CSV file, a comma delimited file, to an HTML file.  The second example shows how to convert any character delimited (tab, bar, semicolon etc.). 

To convert to XML simply change the /C44 to /C46 in the examples below. 

The examples are shown using the very fast ‘Convert XLS’ conversion method.  To use the ‘MS Excel’ conversion method replace /M2 with /M1.  Each switch shown in blue is described in detail below the examples.

It is highly recommended you review each switches description before implementing the example, thereby giving you the full power of ‘Convert XLS’.

Example 1 (Comma Delimited CSV File to HTML) 

To convert a single comma delimited CSV file,  “C:\in\input.CSV” to a HTML file located in the  “C:\Out\” folder, the following syntax would be used:

 

ConvertXLS.EXE /S"C:\in\input.CSV"  /T "C:\Out\output.HTM" /C44  /F6 /M2 /V

To convert a whole folder (and subfolders) of comma delimited CSV files,  C:\CSVFiles\*.CSV to HTML files located in the  C:\Out\ folder, the following syntax would be used:

 

ConvertXLS.EXE /S"C:\in\*.CSV"  /T "C:\Out\*.HTM" /C44  /F6 /M2 /R /V

 

The /G switch can be used to tell ‘Convert XLS’ to simply place each output file in the same folder as each input file. Therefore the command line above is equivalent to the command line below:

 

ConvertXLS.EXE /S"C:\in\*.CSV"  /G  /C44  /F6 /M2 /R /V

 

You may simply want to convert a whole folder and its subfolders and place the output into a separate folder/drive. In which case use this syntax:

 

ConvertXLS.EXE /S"C:\in\*.CSV"  /T "C:\Out\*.HTM"   /C44  /F6 /M2 /R /V

 

Example 2 (Any Character Delimited CSV File to HTML) 

The next example can be adapted to convert any character delimited text (CSV) file.  Say we have a bar “|” delimited text file that looks like this:

 

a1|b1|c1

a2|b2|c2

a3|b3|c3

 

The bar character has an ASCII equivalent of 124 therefore they syntax would be like this:

 

ConvertXLS.EXE /S"C:\in\bar_delimited.txt"  /T "C:\Out\Final.HTM"  /C44  /F6 /M2 /N"^^124" /V

 

If we had a tab delimited file we would simply change the 124 in the above examples with ASCII equivalent of the tab character, 9.  If you are not sure what the numeric equivalent of your separation character is, go to the Options button and click on the “CSV,TSV…” tab within the user interface.  Of course the examples above can be adapted to do whole folders and subfolders similar to what we did in Example 1.

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• The /S and /T switches above specify Source (input) and Target (output) path respectively and are both required when converting a single file.  It is always a good idea to use double quotes around the path especially if there are space characters within the path.

• The /C44 switch specifies that the target (output) file to be a HTML file whereas the /F6 switch specifies the original (input file) is a CSV file.  See Excel Conversion File Type Constants (documentation) for all possible values for /C and /F.  Use /C46 to convert to XML.

• The /M2 switch tells it to use the ‘Convert XLS’ conversion method which is exceptionally fast. Note the /M1 switch could have been used to specify the ‘MS Excel’ conversion method which is a bit slower and requires MS Excel.

• The /R switch tells it to search the original folder and its subfolders for files to convert.

• /G switch can be used to tell ‘Convert XLS’ to simply place each output file in the same folder as each input file.

• /N"{Sheet^Range^DelimChar^FixedWidth^X}"  Is used when converting to/from an Excel, CSV or fixed width text file. It specifies which Sheets to convert, what Range to convert and what delimitation/separation character to use, and the method to import export to a fixed width text file.  The syntax for this parameter is critical, the items are separated by a caret character "^".  In this example we are only using it to specify the ASCII Chart of the delimitation character of the CSV file.

• The /V (for Verbose) switch is used to give instant feedback by having the program report the status of the conversion with a message box.  You can remove this once you have perfected your command line specification.  You can also (or instead of /V) create a Log file that will contain the results of the conversion by using the /L switch.