Planmaker xlsx files not recognized as proper excel when importing into other software

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avsu
Posts: 4
Joined: Sun Sep 21, 2025 9:35 pm

Planmaker xlsx files not recognized as proper excel when importing into other software

Post by avsu »

When trying to import a Planmaker NX file saved as XLSX file into another program it will not import and gives the error wrong file format FLEXCEL.

If I open that file in Excel and just do a save and then try to import it into the other program then it imports flawless.
It seems to me that it may have to do with the file headers of the XLSX file generated by Planmaker NX that causes the other program to not recognise it as a proper Excel file.

Is this a known issue that may happen with other programs or is it a bug in Planmaker NX itself?
avsu
Posts: 4
Joined: Sun Sep 21, 2025 9:35 pm

Re: Planmaker xlsx files not recognized as proper excel when importing into other software

Post by avsu »

The error message that shows is below
Planmaker import error message.PNG
Planmaker import error message.PNG (2.44 KiB) Viewed 4685 times
Opening an Excel xlsx file in Planmaker and the save it again as a Planmaker XLSX file also generates this error.
Jossi
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Joined: Fri Dec 05, 2003 10:47 pm
Location: Luebeck, Germany

Re: Planmaker xlsx files not recognized as proper excel when importing into other software

Post by Jossi »

Same problem here.
SuperTech
SoftMaker Team
SoftMaker Team
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Re: Planmaker xlsx files not recognized as proper excel when importing into other software

Post by SuperTech »

Thank you for reporting this issue. To help us investigate effectively, please provide the following information:

1. The name of the destination software where you are trying to import the file.

2. The problematic file saved from PlanMaker that fails to import.

3. The same file saved from Microsoft Excel that imports successfully.

Comparing these files will allow us to pinpoint the cause of the import failure.

If your files contain confidential information, please email them to forum[at]softmaker.com and include a link to this discussion for context.
Jossi
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Joined: Fri Dec 05, 2003 10:47 pm
Location: Luebeck, Germany

Re: Planmaker xlsx files not recognized as proper excel when importing into other software

Post by Jossi »

Sorry, I couldn't reproduce the issue anymore. Seems to have been a defect of one specific file, not a general problem with PlanMaker.
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