Click the "Select File" button above, and choose your OTS file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert OTS to another file type
The converter easily converts your OTS spreadsheet templates to various formats - free and online. No LibreOffice Calc or or other Spreadsheet software needed.
OTS to PDF
OTS to DOTM
OTS to PSW
OTS to SXD
OTS to MET
OTS to SYLK
OTS to FODP
OTS to ODP
OTS to SXW
OTS to PPTX
OTS to UOP
OTS to PDB
Convert a file to OTS
To convert other file formats to the "OpenDocument Template" file type, you need software like LibreOffice Calc or a similar tool.
About OTS files
The .ots file extension primarily represents an OpenDocument Spreadsheet Template. Defined by the OASIS standard, it is an XML-based, ZIP-compressed archive used to store pre-configured spreadsheet layouts, mathematical formulas, and cell styles. It is natively supported by open-source office suites like LibreOffice Calc and Apache OpenOffice. The extension is also occasionally used for OpenTimestamps Proof Files (cryptographic blockchain proofs) and Winning Poker Network Tournament Summaries (JSON-based logs used by tracking software like Holdem Manager 3).
Sharing an .ots file directly is a common mistake that causes significant friction. Because it is a template, double-clicking the file typically spawns a blank, unsaved working document rather than opening the original file for editing. Furthermore, sending .ots files to users embedded in the Microsoft Excel ecosystem often results in broken macros, lost pivot tables, or unsupported formatting. It is strictly a blueprint format, not a data-exchange format.
To share your data reliably, you must convert the file. Convert .ots to XLSX for guaranteed compatibility and seamless editing in Microsoft Excel. Convert to ODS if you want a standard, non-template LibreOffice document. For long-term archiving or printing without formatting errors, convert to PDF. If you just need the raw tabular data for a database, convert to CSV. Drop your file here to analyze and convert it securely right in your browser on convert.guru - free, online, and without installing software.
Use Convert.Guru to open and convert your OTS file.
If you want to convert OTS file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC or APE, you can use LibreOffice Calc or similar software from the "Spreadsheet Template Storage" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to OTS, try LibreOffice Calc or another comparable tool in the "Spreadsheet Template Storage" category.
The OTS Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our OTS converter.