https://www.planetsquires.com/protec...p?topic=3208.0
http://www.planetsquires.com/files/xmlExcel.zip
how to use on vb6?
Hi Guys,
I have been busy lately writing an application for my work. A requirement is to output Excel compatible workbooks. As you may know, I wrote old school BIFF2 Excel files years and years ago. That file type is now considered a security risk by Excel so I can't use it.
I thought about using COM automation but is seems so slow and at times unreliable if an instance fails or goes screwy under Windows.
I looked at the current Excel Open XML format. Very powerful but somewhat complicated and requires the resulting files to be compressed (zip format) into an .xlsx file.
My research allowed me to stumble on the Excel 2003 XML format (SpreadsheetML). I can't believe that we as a PowerBasic community have not written code for this before. It is pretty easy to create the XML files and incredibly fast.
The reason for this post is to let you know that I have a class to handle all of this stuff just about complete. It will allow us to output our data into Excel ready files.... no more .CSV files!
Here is what the class does so far:
- Create Workbooks with as many Worksheets in them that you wish.
- Rows up to 1,000,000 and columns to 16,000 (that is the current Excel limits).
- Create default style for the entire Workbook but still allow individual cells to have their own styles.
- Styles include things like: Font names, font size, font color, bold, underline, italic, background cell colors, borders (left/right/top/bottom), text and number alignment (left/right/center).
- Cells can be spanned across as many columns as you wish. For example, you can span four columns and center the text.
- Formulas. That's right, embed formulas directly into your file. Stuff like =SUM(A1:A3) is easy.
- Fast! Create 100,000 cells in 0.28 seconds and then write them to the XML file in 2.56 seconds... and that is not even optimized fully yet.
I still have a few things left to write like allowing setting the printer and print preview settings directly in your file. I will be testing the class this week in my application and then I'll post it here for you guys. Maybe not the source code but at least an SLL.
http://www.planetsquires.com/files/xmlExcel.zip
how to use on vb6?
Hi Guys,
I have been busy lately writing an application for my work. A requirement is to output Excel compatible workbooks. As you may know, I wrote old school BIFF2 Excel files years and years ago. That file type is now considered a security risk by Excel so I can't use it.
I thought about using COM automation but is seems so slow and at times unreliable if an instance fails or goes screwy under Windows.
I looked at the current Excel Open XML format. Very powerful but somewhat complicated and requires the resulting files to be compressed (zip format) into an .xlsx file.
My research allowed me to stumble on the Excel 2003 XML format (SpreadsheetML). I can't believe that we as a PowerBasic community have not written code for this before. It is pretty easy to create the XML files and incredibly fast.
The reason for this post is to let you know that I have a class to handle all of this stuff just about complete. It will allow us to output our data into Excel ready files.... no more .CSV files!
Here is what the class does so far:
- Create Workbooks with as many Worksheets in them that you wish.
- Rows up to 1,000,000 and columns to 16,000 (that is the current Excel limits).
- Create default style for the entire Workbook but still allow individual cells to have their own styles.
- Styles include things like: Font names, font size, font color, bold, underline, italic, background cell colors, borders (left/right/top/bottom), text and number alignment (left/right/center).
- Cells can be spanned across as many columns as you wish. For example, you can span four columns and center the text.
- Formulas. That's right, embed formulas directly into your file. Stuff like =SUM(A1:A3) is easy.
- Fast! Create 100,000 cells in 0.28 seconds and then write them to the XML file in 2.56 seconds... and that is not even optimized fully yet.
I still have a few things left to write like allowing setting the printer and print preview settings directly in your file. I will be testing the class this week in my application and then I'll post it here for you guys. Maybe not the source code but at least an SLL.