How to Determine If a File Is Read-Only

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SUMMARY
This article describes how to determine if a file has an attribute of read-only, and how to determine if a file is opened as read-only usingMicrosoft Visual Basic for Applications code.
MORE INFORMATION
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. You can determine if a file has an attribute of read-only or if the file isopened as read-only by using the macros described in this article.

Steps to Set a File to Read-Only Using Windows

  1. In Microsoft Excel, open up a new workbook and save it to the C:\ folder (directory) with the name C:\Test.xls.
  2. Close Test.xls, and in Windows Explorer (Windows File Manager in versions earlier than Windows 95), select the file you saved in Step 1.
  3. On the File menu, click Properties.
  4. In the file's Properties box, click to select the Read-only check box, and then click OK.

Steps to Set a File to Read-Only using the Macintosh

  1. In Microsoft Excel, open a new workbook and save it as "Test" to the hard disk.
  2. Close Test and hide Microsoft Excel. On the desktop, open your hard disk by double-clicking the hard disk icon.
  3. Highlight "Test," click the File menu, and then click Get Info.
  4. Click on Locked, then click on the close button in the upper-left corner of the Info box.

Sample Visual Basic Procedures

Example 1: A Macro to Determine if File's Read-Only Attribute is Set

The following macro will determine if a file's read-only attribute is set.Open the file you created above, and then type the macros below in a modulesheet.
Sub Example1()    ' Test to see if the Read-only attribute was assigned to the file.    If GetAttr("c:\test.xls") And vbReadOnly Then        MsgBox "File is Read-only"    Else        MsgBox "File is not read-only"    End IfEnd Sub				
If you followed steps 1 - 5 in the "Steps to Set a File to Read-Only usingWindows" section, when you run the macro in Example 1, you will receive amessage box with the "File is Read-only" message.

Note: If you are working on a Macintosh, substitute the harddisk's name and"test" for "c:\test.xls". For example, if your harddisk's name is "HD",you would type GetAttr("HD:test").

Example 2: A Macro to Determine if Active Workbook is Opened as Read-Only

The following macro will determine if the active workbook is opened asread-only.
Sub Example2()    ' Check to see if the active workbook was    ' opened as read-only within Microsoft Excel.    If ActiveWorkbook.ReadOnly Then        MsgBox "File was opened as read-only"    Else        MsgBox "File was not opened as read-only"    End IfEnd Sub				
If you open the workbook created in step 1 of the "Steps to Set a File toRead-Only using Windows" section, when you run the macro from Example 2,you will receive a message box with the "File was opened as read-only"message.
REFERENCES
For additional information about getting help with Visual Basic forApplications, please see the following article in the Microsoft KnowledgeBase:
163435 VBA: Programming Resources for Visual Basic for Applications
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Article ID: 153058 - Last Review: 12/04/2015 14:59:10 - Revision: 2.3

Microsoft Excel 97 Standard Edition, Microsoft Excel 95 Standard Edition, Microsoft Excel 5.0 Standard Edition, Microsoft Excel 98 for Macintosh

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