Unable to save files

You can be getting an error notice when attempting to export Tally data in Excel format for a number of reasons.
You might attempt the following troubleshooting steps:

If you're trying to save the Excel file somewhere, be sure you have the right rights.
You might not have the required permissions to save the file if you are attempting to save it in a restricted place or on a network disk.
Try storing the file somewhere else, such your desktop or another folder.

Make sure you have enough space on your hard drive to save the file.It might not be possible to save the Excel file if your hard drive is full or nearly full.
Try removing unnecessary files or programs to free up some disk space.

Verify the file name and path for any special characters.
While saving the file, issues may occur if the file name or path contains special characters like slashes or colons.
Change the file's name while avoiding special characters.

Check to see if the Excel file is open already.
It might not be possible to save the file if it is open in another program or instance of Excel.
Close any open Excel windows, then try exporting the file once more.

A different format might be tried for the file's export.
Try exporting the file in an other format, such as CSV or PDF, if you are unable to save the file in Excel format.

If none of these fixes the problem, you might need to contact Tally support or your IT department for more help.

Login with Administrator account on Windows (Root account on Linux) connect the WD passport, access the files / change the permissions.

Step 1:
You might not have the appropriate software installed on your computer to show / read the files
IE: adobe flash , directx , win zip , codec , word ...... Determine if access is denied by a sharing violation because the folder and its files are in use by someone else or the computer itself. Wait several minutes, and then attempt to access the folder again. Go to the location where the file or its folder are stored on your computer. Lock files are hidden files in Microsoft Windows. Select "Show hidden files." The lock files for Windows applications have a ~ symbol in front of the file name. For example, for test.txt, the lock file is named ~test.txt. In UNIX, the lock file may be identified by an extension of .lock or .swp within in the file name. Delete the lock file. The locked file or folder unlocks. Reboot your computer, and bring it up in Safe Mode. This prevents the startup of many of the system services and programs that could be locking the files or folders. Attempt to access the folder location and its contents. If the folder is available, save the folder or its contents in a directory to which you have access. Record the active processes running on the computer and the programs available in Safe Mode. Then, log into the computer after a normal boot up. Review the applications running in the background in normal setup. One of these applications may be preventing access to the file folder and its contents. If there are applications that run in normal mode that do not run in Safe Mode, turn off those applications. Then, try to access the file folder again. b> Are the Security Permissions for the Folder or Its Contents Preventing Access? b> Check the file folder permissions by right-clicking on the folder and selecting "Properties." In the "Properties" dialog box, select the "Security" tab. The "Name" list box includes the user and group permissions. If there is no "read," "read and execute," or "write" permissions in your user profile, you do not have permission to view the file folder or its contents. These security permissions are typically set by system administrators. System administrators may be trying to prevent end users from altering system files that are critical to the computer running smoothly. Contact your system administrator, and request local administrative rights to the computer. This allows you to gain access to the files and folders that are restricted to administrators. Edit the system policies using administrative tools via the gpedit.msc program. Users can add, read and modify permissions for folders and other objects via this program. Full control is the best system policy, because it includes read, write, execute and modify rights. However, access to the gpedit.msc program may be restricted, as well. Go to the command line (press on the "Windows" and the "R" keys on your keyboard at the same time), and enter the CACLS command for the folder name. Use the command format: C:\> cacls <foldername> /E /G <username>:F CALCS stands for Change the Access Control ListS. This command allows you to add your user name to the security settings to permit access to the protected system folder when the gpedit.msc program is not available.

Downloads to Recover Your Files and Save Your Bacon and 10 Best Free Hard Drive Utilities. Some addition links found on Google
http://www.datarecoveryreview.net/

http://www.cleverfiles.com/

http://www.easeus.com/resource/hard-disk-data-recovery.htm

You might not have the appropriate software installed on your computer to show / read the files
IE: adobe flash , directx , win zip , codec , word ......
Determine if access is denied by a sharing violation because the folder and its files are in use by someone else or the computer itself. Wait several minutes, and then attempt to access the folder again. Go to the location where the file or its folder are stored on your computer. Lock files are hidden files in Microsoft Windows. Select "Show hidden files." The lock files for Windows applications have a ~ symbol in front of the file name. For example, for test.txt, the lock file is named ~test.txt. In UNIX, the lock file may be identified by an extension of .lock or .swp within in the file name. Delete the lock file. The locked file or folder unlocks. Reboot your computer, and bring it up in Safe Mode. This prevents the startup of many of the system services and programs that could be locking the files or folders. Attempt to access the folder location and its contents. If the folder is available, save the folder or its contents in a directory to which you have access. Record the active processes running on the computer and the programs available in Safe Mode. Then, log into the computer after a normal boot up. Review the applications running in the background in normal setup. One of these applications may be preventing access to the file folder and its contents. If there are applications that run in normal mode that do not run in Safe Mode, turn off those applications. Then, try to access the file folder again. b> Are the Security Permissions for the Folder or Its Contents Preventing Access? b> Check the file folder permissions by right-clicking on the folder and selecting "Properties." In the "Properties" dialog box, select the "Security" tab. The "Name" list box includes the user and group permissions. If there is no "read," "read and execute," or "write" permissions in your user profile, you do not have permission to view the file folder or its contents. These security permissions are typically set by system administrators. System administrators may be trying to prevent end users from altering system files that are critical to the computer running smoothly. Contact your system administrator, and request local administrative rights to the computer. This allows you to gain access to the files and folders that are restricted to administrators. Edit the system policies using administrative tools via the gpedit.msc program. Users can add, read and modify permissions for folders and other objects via this program. Full control is the best system policy, because it includes read, write, execute and modify rights. However, access to the gpedit.msc program may be restricted, as well. Go to the command line (press on the "Windows" and the "R" keys on your keyboard at the same time), and enter the CACLS command for the folder name. Use the command format: C:\> cacls <foldername> /E /G <username>:F CALCS stands for Change the Access Control ListS. This command allows you to add your user name to the security settings to permit access to the protected system folder when the gpedit.msc program is not available. Hope this helps.

b>

it is probably because the format of the drive is different. try the following.

1. Back up all the data on the drive or on the device to another location to make sure that no important information is lost.
2. Click Start , click Computer, right-click the drive or the device, and then clickFormat.
   
   If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
3. Select the NTFS (default) file system in the list.
4. Click to select the Quick Format check box.
5. Click Start.
6. Close the Format Local Disk dialog box after the formatting is finished.

Are you dragging and dropping files from the WD passport to a folder on your computer? If so which folder? It may be that you are trying to copy the files into a Windows system directory.
Try dragging and dropping the files to a folder on your Desktop or under My Documents.

Please leave feedback for this solution, thanks.

User access controls can be a downright pain. The most likely cause of this is that the files are being accessed. The best solution I can think of is to remove the USB thumb drive and put it in another computer and attempt to delete them then. You may also want to look at the permissions assigned to the files (right click on the file and open up its properties, under the security tab you'll see all the user profiles listed and their respective permissions. Double check that you have the full control permission. If not you may need to access the administrator account itself (if you aren't already).

This error means you dont have suffecient priviledges to save. It sounds like you need to be logged into an Administrator account. If you are, Right click the icon for the flash drive, And click Run As Administrator