Get to the root of your digestive issues with gut-brain therapy techniques that help you self-manage your gut symptoms in just 6-weeks.

IBS, functional dyspepsia, functional constipation, and functional heartburn are now classified as gut-brain disorders - conditions driven by miscommunication between the gut and brain. The same gut-brain dysfunction also explains why many people with IBD continue to experience pain, constipation, or diarrhea even when their disease is in remission.
When the gut and brain fail to communicate properly, the body can misinterpret normal digestive processes as pain or discomfort. This heightened sensitivity, known as visceral hypersensitivity, can make the gut more reactive and contribute to gastrointestinal symptoms.
Nerva combines evidence-based gut-brain therapy techniques with real human support to help you self-manage symptoms, rebuild confidence, and get back to living fully.
The Nerva program was co-founded by Dr. Simone Peters, who ran a clinical trial with Monash University that found gut-brain therapy therapy worked just as well as the Low FODMAP diet in helping you participants well with and self-manage IBS.



Gut-brain therapy techniques targets the source of the problem: oversensitive nerves in the gut.
Gut-brain therapy techniques teaches you how to address this miscommunication between the gut and brain.
Gut-brain therapy techniques has been shown to help with constipation, diarrhea and mixed IBS.
Studies have shown gut-brain therapy techniques can help you achieve long-lasting IBS management.




Answer questions about you and your gut history to see if Nerva can work for you.

Daily gut-brain sessions, educational content, and goal oriented progress, tailored to your preferences.

Learn skills that can help you teach your brain to ignore false alarms from the gut triggered by food and stress.

Live the life you want, free from the control of digestive diseases.
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Converting an LBL file to BTW is a common challenge for businesses migrating from legacy labeling software to Seagull Scientific BarTender. Because both formats are proprietary, there is no "one-click" universal converter; however, there are strategic ways to handle the transition depending on the original software. Understanding the Formats
.LBL (Legacy/Competitor Format): Most commonly associated with NiceLabel, ZebraDesigner, or LabelView. These files contain proprietary design data, field mapping, and layout instructions.
.BTW (BarTender Format): The exclusive document format for BarTender Designer, containing layout details, database links, and printer commands. How to "Convert" LBL to BTW
Direct conversion is generally unsupported by BarTender. To move your designs over, use one of the following industry-standard workflows: 1. The Template Image Method (Recommended)
This is the most reliable way to maintain design accuracy without manual measurements. How to open BTW file (and what it is) - File.org
The conversion of files typically involves transitioning from legacy labeling software (like older versions of NiceLabel or Codesoft) to Seagull Scientific BarTender
. There is no direct "Save As" function between these competing formats, as they are proprietary to different developers. Understanding the File Formats : A legacy label design format primarily used by
(versions 5/6) and occasionally associated with older database-driven labeling systems. : The native, proprietary format for BarTender Designer
. It stores layout details, printer commands, and data source connections. NiceLabel Help Center Methods for Conversion 1. Manual Recreation (Recommended for Accuracy)
Because BarTender cannot directly open .lbl files, the most reliable method is to recreate the label manually in BarTender Designer Seagull Support Portal Use a Guide Image
: Save your existing .lbl label as a standard image (e.g., .JPG or .PNG). Import as Background : In BarTender, go to the Template Background settings and import that image as a "Design Guide". Trace and Map
: Place new BarTender text, barcode, and graphic objects over the guide image to ensure identical positioning. Seagull Support Portal 2. Third-Party Conversion Tools
If you have a large library of labels, you can use automated migration tools, though they may require manual adjustments afterward. Loftware Label Converter
: This tool is specifically designed to migrate templates from BarTender, Codesoft, and older NiceLabel versions into newer formats. Requirement
: You must have a licensed copy of the original software (e.g., BarTender 2016+ or Codesoft 2019+) installed on the same machine to facilitate the conversion. Limitations
: Automated converters often fail to map 100% of barcode parameters or complex database triggers accurately. 3. SAP Integration (Enterprise Use)
In environments like SAP, labels may be exported as .lbl or .btw depending on the BarTender edition. SAP Community convert lbl file to btw
Converting .lbl files (typically associated with software like LabelView or NiceLabel) to .btw (the native format for BarTender) is a frequent challenge for businesses switching label software. Currently, there is no direct, automated "one-click" converter to turn an .lbl file into a fully functional .btw file. Conversion Overview & Methods
Since direct conversion isn't supported, you must use workaround methods to migrate your label designs:
Manual Recreation (Recommended): The most reliable way is to recreate the label in BarTender manually. This ensures that all dynamic fields, barcodes, and database connections work correctly. The "Tracing" Workaround:
Export your original .lbl file as a high-resolution image (e.g., JPEG or PNG).
In BarTender, go to Page Setup > Background and import that image as a "Template Image".
Use this background as a guide to place your BarTender objects (text, barcodes) exactly over the original design.
Zebra Designer Transition: If your .lbl files are from older Zebra software, you may need to open them in ZebraDesigner 3 to convert them to .nlbl first, though this still doesn't get them directly into BarTender's .btw format.
Third-Party Intermediaries: Some online tools like pdfFiller or DocHub claim to convert .lbl files to PDF. While this won't give you an editable .btw file, a PDF can be imported into BarTender as a static graphic. Expert Review: Is it worth it? Manual Recreation Third-Party Converters Accuracy High; all dynamic data is native to BarTender. Low; often results in flat images with no editable data. Efficiency Slow for large batches. Faster for visual-only transfers. Data Integrity Preserves database links and serialization. Usually loses all dynamic logic.
Verdict: For critical production labels, manual recreation is the only way to guarantee barcode scannability and data accuracy. For simple, static designs, exporting to a PDF/image and using it as a background template in BarTender is a functional shortcut. Convert LBL to PDF Online
If both formats are text-based and simple, you could use Python. For example:
def convert_lbl_to_btw(lbl_path, btw_path):
try:
with open(lbl_path, 'r') as lbl_file:
# Assuming lbl file content can be read line by line and directly written to btw
with open(btw_path, 'w') as btw_file:
for line in lbl_file:
btw_file.write(line)
print("Conversion successful.")
except Exception as e:
print(f"An error occurred: e")
# Example usage
convert_lbl_to_btw('input.lbl', 'output.btw')
This example assumes a direct line-by-line conversion, which may not be applicable but illustrates the basic concept.
If you only need the label’s visual layout and barcodes are static (non-changing serial numbers), you can:
Pros: 100% visual accuracy.
Cons: Dynamic data and serialized barcodes won’t work; you must re-key all variable fields.
| LBL Object | BTW Equivalent | Notes |
|--------------------|--------------------------------|----------------------------------------|
| Text field | Text object (standard) | Font, size, alignment, rotation |
| Barcode 1D/2D | Barcode component | Symbology mapping (Code39, 128, QR) |
| Line / Rectangle | Shape (line/rectangle) | Color, thickness, fill |
| Image (BMP, PNG) | Embedded image | Keep original or compress |
| Database field | Named data source | Retain field name mapping |
| Serial counter | Serialization property | Increment, reset condition |
| Print quantity | Copies setting | Converted to PrintJob parameters |
| Page size & orientation | Page setup (Paper tab) | Width, height, margins, orientation |
.lbl file..btw is likely a typo; you probably want .srt or .idx.Would you like help identifying your specific file type? You can share the first few lines of the file (if text) or tell me which program created it.
Moving from NiceLabel to BarTender: How to "Convert" LBL to BTW Converting an LBL file to BTW is a
If you’re switching your labeling operations from NiceLabel to BarTender by Seagull Scientific
, you’ve likely run into a frustrating wall: BarTender cannot natively open or automatically convert NiceLabel files into its own
Because these formats use entirely different design engines, there is no "Save As" magic button. However, you don't have to start from a blank slate. Here is the professional workflow for migrating your label designs efficiently. The "Trace and Recreate" Method
Since direct conversion isn't an option, the most accurate way to migrate is to use your existing NiceLabel design as a visual template within BarTender. Export as an Image : Open your original
file in NiceLabel and export the design as a high-resolution image (JPEG or PNG). Set as BarTender Background BarTender Designer and start a new document. New Document Wizard and navigate to the Label Background and browse for the image you exported from NiceLabel. Overlay Your Elements
: With the original design visible in the background, use the BarTender Toolbox
to drop new text boxes, barcodes, and lines directly over the image. This ensures 1:1 placement accuracy. Remove the Background : Once your new
elements are in place, delete the background image to leave only the native BarTender objects. Pro Tip: Connecting Your Data
One of the biggest hurdles in migration is reconnecting your databases. If your NiceLabel files were pulling from Excel or SQL, you will need to re-establish these links in BarTender: File > Database Connection Setup Select your source (e.g., Microsoft Excel
) and follow the wizard to map your columns to your new label fields. Why Isn't There a Direct Converter? Loftware Label Converter exists to help users move NiceLabel from BarTender, the reverse (moving
BarTender) typically requires manual recreation to ensure printer-specific optimizations and barcode integrity are maintained. Summary Table: Migration Paths .LBL (NiceLabel) .BTW (BarTender) Migration Strategy Native Opening Manual Recreate Data Linking Excel/SQL/CSV Excel/SQL/CSV Re-map via Database Wizard Design Guide Original File Image Overlay Use "Template Image" feature Need help with a large-scale migration?
For companies with thousands of labels, it may be worth contacting BarTender Professional Services to discuss automated migration scripts or batch services. Do you have a specific version
of BarTender (e.g., 2022 or Professional) that you are using for this migration?
Direct Answer: no native or automated way to directly convert a file. This is because
are proprietary, completely incompatible formats owned by competing professional labeling software. Seagull Support Portal is primarily used by (or older versions of ZebraDesigner and Labelview). is the native format for by Seagull Scientific. Seagull Support Portal
Because "one-click" converters for this specific transition do not exist, a solid review of your options requires looking at the manual and semi-automated workarounds available. 🟢 The "Trace & Recreate" Method (Recommended) Since BarTender cannot read the raw code of a Example with Python If both formats are text-based
file, the industry standard for migrating to BarTender is to manually recreate the template using a background guide. Seagull Support Portal How it works: You export your
label from its original software as a high-resolution image file (like a JPEG or PNG). In BarTender, you start a new
document and set that exported image as a "Template Image" or background guide. You then draw your BarTender text boxes, barcodes, and shapes directly over the top of the guide to ensure perfect alignment. The Verdict: It is tedious if you have hundreds of labels, but it is the most reliable method
to ensure your barcodes scan correctly and your text fields map to your new databases flawlessly. Seagull Support Portal 🟡 The Loftware / NiceLabel Alternative If you are trying to go the
direction or consolidate software, it is worth noting that Loftware (which owns NiceLabel) provides a Loftware Label Converter NiceLabel Help Center How it works: This tool can sometimes convert other formats NiceLabel's modern format. The Verdict: This does not help you get a
file for BarTender, but it is a solid fallback if you are simply trying to modernize old files without rebuilding them. NiceLabel Help Center 🔴 Beware of "Universal" Online File Converters
If you search Google for "LBL to BTW converter," you will likely see online tools (like Files-Convert ) claiming they can do it. Zebra Support The Verdict: Avoid these entirely.
These platforms treat the files as basic text or PDF layouts. They cannot convert the complex printer code, dynamic database fields, or specific barcode symbologies embedded inside a professional label file. At best, they will corrupt the file; at worst, some of these random sites are riddled with subscription traps or malware. Seagull Support Portal Summary Advice
If you have a small batch of labels, set aside an afternoon to rebuild them manually in BarTender
using a background image as a guide. If you have thousands of legacy labels, reach out directly to Seagull Scientific (BarTender) or a certified partner; they often provide paid professional services to rebuild massive label libraries for enterprise migrations. Seagull Support Portal
To give you the most accurate advice for your specific setup, do you need to migrate, and which software created them (NiceLabel, ZebraDesigner, or Labelview)? Seagull Support Portal
Labelview Lbl Converter 2 Bartender - Seagull Support Portal
If the direct open method fails or produces a broken layout, the most reliable method is to recreate the label. While this sounds tedious, it ensures the BTW file is optimized for BarTender’s engine rather than acting as a patched-together import.
.sub)To understand the conversion, you must understand the file types:
Because both are proprietary formats owned by competing companies, there is no simple "Save As" or online converter tool. The conversion requires a specific workflow involving the BarTender software.

"Hi, it's Alex, one of the founders of Nerva alongside Chris and Dr. Simone Peters.
We designed Nerva to help people with gut-brain disorders get back to a happy, normal life, free of flare-up worries. We're so proud of the fact that we've already helped over 300,000 people live better. Yet, we understand Nerva may not work for some people which is why we have a 100% money back guarantee.
If you finish your 6-week program and think Nerva hasn't helped you manage your symptoms, simply email support for a full refund of the Nerva program."
- Alex Naoumidis, Co-Founder and Co-CEO, Mindset Health

Based on studies that helped 3 in 4 people manage their gut symptoms.
15 minutes a day for 6 weeks. Short and relaxing sessions that fit with your schedule.
Discover helpful and calming flare-up exercises, like our deep breathing techniques.
Listen anytime and anywhere (home, office, couch, you name it).
Learn about gut-brain disorders with a range of easy to understand in-app articles.
Say bye to bots. We have real Nerva team members ready to help!
1) Anderson, Ellen J. BNutSci, MDiet1,2; Peters, Simone L. BSc (Psychophysiology) (Hons), PhD1; Gibson, Peter R. MBBS(Hons), MD1,2; Halmos, Emma P. BNutDiet, PGradDipBSc, PhD1,2. Comparison of Digitally Delivered Gut-Directed Hypnotherapy Program With an Active Control for Irritable Bowel Syndrome. The American Journal of Gastroenterology 120(2):p 440-448, February 2025. | DOI: 10.14309/ajg.0000000000002921 2) Peters, S. L., Yao, C. K., Philpott, H., Yelland, G. W., Muir, J. G., & Gibson, P. R. (2016). Randomised clinical trial: the efficacy of gut-directed hypnotherapy is similar to that of the low FODMAP diet for the treatment of irritable bowel syndrome. Alimentary pharmacology & therapeutics, 44(5), 447–459. https://doi.org/10.1111/apt.13706