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Note

This is a code which could create only create xls file. But I want to create xlsx (Excel) file; how can I do that from this code or else can I have another code which I could use to create xlsx fil. Only Microsoft Excel.xls files will be converted regardless of other files that may be in the folder. Select Convert Excel file to OpenXML format. By default a backup of the pre-converted.xls file and a log is created in the directory locations displayed. You can browse to identify new.

Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.

Possible causes that documents do not save

Excel is currenly open in left to right but the new Microsoft Excel Worksheet is open from right to left Guy Zommer Moved by George Hua Thursday, February 20, 2014 3:06 AM Excel product related. XLSX, Microsoft Excel Open XML Spreadsheet (.xlsx) XLSX files are produced by the applications of Microsoft's 2007 Office suite, namely by the product called Microsoft Excel, a spreadsheet processing software that is known all around the globe.

Select the tab that applies to you, or go to the Quick resolution section below.

If the Excel file is not saved when you run Excel in Windows safe mode, the issue may be caused by a third-party add-in or by a file that is in one of the Excel startup locations. By default, these files are loaded when you start Excel.

Sometimes, third-party software vendors install custom add-ins to work with Excel. Some of these add-ins work with existing Excel features by design, and some are intended to enable a seamless transition when you are using a third-party product. Typically, these third-party add-ins do not interfere with normal Excel functionality. However, there are some exceptions. For example, Excel save conflicts have occurred because of an add-in.

To test for and eliminate the possibility that a third-party Excel add-in or file is causing an Excel save issue, start Excel in safe mode. To do this, follow these steps:

1. Exit Excel.

2. Select Start, and then point to Programs.

3. Press Ctrl when you start Excel, and hold it until you receive a message that resembles the following:

   Excel has detected that you are holding down the Ctrl key. Do you want to start Excel in safe mode?

4. Select Yes.

5. Try to save a new Excel file, and then resave the same Excel file again.

If the file saves correctly, a custom add-in or a file that is located in an Excel startup location is most likely the cause. You must locate and remove the add-in or the file to eliminate the problem. After you determine the add-in or the file that caused the problem, contact the vendor that designed it. The vendor may have additional information about this issue and an update that does not cause the issue to occur.

For more information about Microsoft Excel safe mode, press F1 in Excel to open the Help menu, type safe mode in the Search box, and then select Search to view the topic.

For more information about how to determine the folders that Excel uses during startup and additional options to disable this functionality, see the following articles:

When you save an Excel file, you must have the following permissions to the folder in which you are saving the file:

• Read permission
• Write permission
• Modify permission
• Delete permission

Note

If you do not have these permissions, the Excel save process cannot be completed.

When you save to any medium, such as a hard drive, an external storage drive, or a network drive, you must make sure that the drive has sufficient free space to enable the file to save. If the destination drive does not have sufficient space, Excel cannot complete the save operation, and you receive the following error message:

Disk is Full.

For more information about this error message, see the following articles:

When antivirus software is installed or is running, you may receive an error message when you try to save an existing workbook. You do not receive an error message if you try to save a new file. You may receive an error message because some antivirus programs quickly scan any new files that appear on a computer. This scan can sometimes disrupt the Excel save process. This interruption may stop Excel from saving the file correctly.

To check if your antivirus software conflicts with Excel, temporarily deactivate the antivirus software and then try to save the Excel file.

If you and a second user work concurrently on a shared workbook, you may receive an error message if you and the second user try to save the file at the same time. You receive an error message because Excel cannot save the file if another instance of Excel is saving the same file.

For more information about this error message, see Unlock a file that has been locked for editing.

If you try to save or open an Excel file, and the path of that file (including the file name) is more than 218 characters, you may receive the following error message:

Filename is not valid.

For more information, see Error message when you open or save a file in Microsoft Excel: 'Filename is not valid'.

Process to save a file

Excel follows these steps when it saves a file:

1. Excel creates a randomly named temporary file (for example, Cedd4100 without a file name extension) in the destination folder that you specified in the Save As dialog box. The whole workbook is written to the temporary file.
2. If changes are being saved to an existing file, Excel deletes the original file.
3. Excel renames the temporary file. Excel gives the temporary file the file name that you specified (such as Book1.xls) in the Save As dialog box.

For more information, see Description of the way that Excel saves files.

Note

Other processes that occur on your computer may disrupt the Excel save process. These issues may occur if the Excel temporary file is accessed before the Excel save process is completed. For example, the local antivirus software locks the temporary file for scanning before the file can be renamed. Therefore, you must keep track of any new software installations or updates that are performed before you have problems when you try to save workbooks. This information will be helpful if this article does not fix your issue and you have to contact Microsoft Support.

Quick resolution

If any of the causes above don't apply to your situation or you still can't save the document, try the following options to help save your Excel document. Select the image at the left or the option heading to see more detailed instructions about that option.

Save the workbook by using a new file name On the File menu, select Save As. Save the Excel workbook by using a unique file name.

Move the original worksheets to a new workbook Add a filler worksheet to your workbook. To do this, press Shift + F11. Group all the worksheets (except the filler). To do this, select the first sheet, hold the Shift key, and then select the last sheet. Right-select the grouped sheets, and then select Move or copy. In the To Book list, select (New Book). Select OK.

Save the file as a different Excel file type On the File menu, select Save As. In the Save as Type list, select a file format other than the current file format. If you are using Microsoft Excel 2007 or a later version, save the file as .xlsx or .xlsm instead of as .xls.

Try to save the workbook to another location Try saving your notebook to another location, such as a local hard drive, a network drive, or removable drive.

Try to save a new workbook to the original location Create an Excel workbook. On the File menu, select Save As. In the Save As dialog box, follow these steps: In the Save in box, select the location in which the original workbook is saved. In the File name box, type a name for the new file. Select Save.

Try to save the workbook in safe mode Restart Windows in safe mode, and then try to save the workbook to your local hard disk.

Additional resources

To avoid problems with documents not saved properly, we recommend that you activate AutoSave. For more information, see: What is Autosave?

If you experience specific issues when you use Excel, go to the following website to search for more information about your program version:

Detailed view of the options

The following section provides more detailed descriptions of these options.

You may have problems when you try to save a Microsoft Excel workbook if one or more of the following conditions are true:

• You save an Excel workbook to a network drive on which you have restricted permissions.
• You save an Excel workbook to a location that does not have sufficient drive space.
• The connection to the Excel workbook is lost.
• There is a conflict with an antivirus software program.
• You save an Excel workbook that is shared.
• The 218-character path limitation is exceeded when you save an Excel workbook.

Workarounds to save Excel workbooks

To work around this problem and try to save your work before you troubleshoot, use the following methods. Depending on the cause of the problem, you may be unable to recover the current file as-is. However, the following methods are typically successful. These methods are listed in order of format retention when you are trying to keep the original file formatting.

Note

The following methods may not save all the latest changes, formatting, and feature sets of the workbook that are specific to the version of Excel that you are using. The following methods are intended to let you obtain a usable, saved version of the file. These methods require you to save the file to your local hard disk by using a unique file name.

Free Practice Excel Worksheets

Option 1: Save the workbook by using a new file name

1. On the File menu, select Save As.
2. Save the Excel workbook by using a unique file name.

Option 2: Move the original worksheets to a new workbook

1. Add a filler worksheet to your workbook. To do this, press Shift + F11.

   Note

   This sheet is required because there has to be at least one remaining sheet in a workbook after you move all relevant data sheets.

2. Group all the worksheets (except the filler). To do this, select the first sheet, hold the Shift key, and then select the last sheet.

3. Right-select the grouped sheets, and then select Move or copy.

4. In the To Book list, select (New Book).

5. Select OK.

   Note

   These steps should move the active (grouped) worksheets to a new workbook.

If your workbook contains VBA macros, copy the modules from the old workbook to the new workbook.

Option 3: Save the file as a different Excel file type

1. On the File menu, select Save As.
2. In the Save as Type list, select a file format other than the current file format. If you are using Microsoft Excel 2007 or a later version, save the file as .xlsx or .xlsm instead of as .xls.

Option 4: Try to save the workbook to another location

Try saving your notebook to another location, such as a local hard drive, a network drive, or removable drive. If you are successful, the following are possible causes of the problem: - [Antivirus software conflict](#antivirus-software-conflict) - [Restricted permissions](#restricted-permissions) - [File name length](#file-name-length) - [File sharing conflict](#file-sharing-conflict)

Option 5: Try to save a new workbook to the original location

To save a new Excel file to the original location, follow these steps:

1. Create an Excel workbook.

2. On the File menu, select Save As.

3. In the Save As dialog box, follow these steps:

   1. In the Save in box, select the location in which the original workbook is saved.
   2. In the File name box, type a name for the new file.
   3. Select Save.

If you can save a new workbook to the original location, the following are possible causes of the problem:

If you cannot save a new workbook to the original location, the following is a possible cause of the problem:

If you have sufficient drive space, try Step 3.

Option 6: Try to save the workbook in safe mode

Restart Windows in safe mode, and then try to save the workbook to your local hard disk.

Notes

• If you use a network location to save your workbook, try to restart Windows in safe mode with network support, and then try to save.
• Windows safe mode cannot be used to troubleshoot issues in Microsoft Excel 2010 or later versions.

For more information about how to start Windows in safe mode, see Advanced startup options (including safe mode).

If the workbook saves after you restart Windows in safe mode, try to save the file again. To do this, select Save on the File menu.

If the workbook does not save (or save again) after you restart Windows in safe mode, the following are possible causes:

More information

Still need help? Go to Microsoft Community.

XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.

Brief History

XLSX file format was introduced in 2007 and uses the Open XML standard adapted by Microsoft back in 2000. Previous to XLSX, the common file format used was XLS that was pure binary file format. The new file type has added advantages of small file sizes, less changes of corruption and well-formatted images representation. It was in the early 2000 when Microsoft decided to go for the change to accommodate the standard for Office Open XML. By 2007, this new file format became part of Office 2007 and is carried on in the new versions of Microsoft Office as well.

XLSX File Format Specifications

In order to see what is inside the XLSX file, just rename it to ZIP file by changing its extension and then extract it to view the constituent files of this Excel workbook. A blank workbook, when extracted to its files, has the following constituent files and folders.

Microsoft Excel Worksheet Free Download

[Content_Types].xml

This is the only file that is found at the base level when the zip is extracted. It lists the content types for parts within the package. All references to the XML files included in the package are referenced in this XML file.

_rels (Folder)

This is the Relationships folder that contains a single XML file that stores the package-level relationships. Links to the key parts of the Xlsx files are contained in this file as URIs. These URIs identify the type of relationship of each key part to the package. This includes the relationship to primary office document located as xl/workbook.xml and other parts within docProps as core and extended properties.

docProps

This folder contains the overall document properties. These include a set of core properties, a set of extended or application-specific properties and a thumbnail preview of the document. A blank workbook has two files in this folder namely app.xml and core.xml. The core.xml contains information like author, date created and saved, and modified. App.xml contains information about the content of the file.

xl (Folder)

This is the main folder that contains all the details about the contents of the workbook. By default, it has following folders:

• _rels
• theme
• worksheets

and following xml files:

• styles.xml
• workbook.xml

XLSX Format Example

For each Excel worksheet contained in a workbook, there is one XML file. You can find these XML files in xl/worksheets folder. All the information contained in a worksheet is organized in different sections in the XML file. Let’s examine a sample worksheet from a workbook which is shown in the following image.

As can be seen, this worksheet contains contents in cells A1 through B2 and an image. In addition, cell G13 is currently the active cell in the worksheet. Now, let’s examine the xl/worksheets/sheet1.xml file to see how this information is represented in the XML file. Contents of this XML file are as shown below.

1. The tab has theme color applied to it. Its mentioned in the XML file with tag following the theme id.
2. The tabSelected value is set to 1 which shows that this is the selected sheet
3. As can be seen in first image above, cell G13 in the worksheet is active cell which is also mentioned in the XML file.
4. The sheetData tab represents the data contained in the worksheet. However, you can see that the original contents of the worksheet are nowhere in this section. This is because the text is indirectly referred from “sharedStrings” XML sheet. This linking ensures that each text is saved only once and can be referenced again in order to save space.
5. The image as can be seen is referenced by reference id “rId2”

References

See Also